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  <div class="section" id="grpc-framework-alpha-package">
<h1>grpc.framework.alpha package<a class="headerlink" href="#grpc-framework-alpha-package" title="Permalink to this headline">¶</a></h1>
<div class="section" id="submodules">
<h2>Submodules<a class="headerlink" href="#submodules" title="Permalink to this headline">¶</a></h2>
</div>
<div class="section" id="module-grpc.framework.alpha.exceptions">
<span id="grpc-framework-alpha-exceptions-module"></span><h2>grpc.framework.alpha.exceptions module<a class="headerlink" href="#module-grpc.framework.alpha.exceptions" title="Permalink to this headline">¶</a></h2>
<p>Exceptions raised by GRPC.</p>
<p>Only GRPC should instantiate and raise these exceptions.</p>
<dl class="exception">
<dt id="grpc.framework.alpha.exceptions.CancellationError">
<em class="property">exception </em><code class="descclassname">grpc.framework.alpha.exceptions.</code><code class="descname">CancellationError</code><a class="reference internal" href="_modules/grpc/framework/alpha/exceptions.html#CancellationError"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.exceptions.CancellationError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#grpc.framework.alpha.exceptions.RpcError" title="grpc.framework.alpha.exceptions.RpcError"><code class="xref py py-class docutils literal"><span class="pre">grpc.framework.alpha.exceptions.RpcError</span></code></a></p>
<p>Indicates that an RPC has been cancelled.</p>
</dd></dl>

<dl class="exception">
<dt id="grpc.framework.alpha.exceptions.ExpirationError">
<em class="property">exception </em><code class="descclassname">grpc.framework.alpha.exceptions.</code><code class="descname">ExpirationError</code><a class="reference internal" href="_modules/grpc/framework/alpha/exceptions.html#ExpirationError"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.exceptions.ExpirationError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#grpc.framework.alpha.exceptions.RpcError" title="grpc.framework.alpha.exceptions.RpcError"><code class="xref py py-class docutils literal"><span class="pre">grpc.framework.alpha.exceptions.RpcError</span></code></a></p>
<p>Indicates that an RPC has expired (&#8220;timed out&#8221;).</p>
</dd></dl>

<dl class="exception">
<dt id="grpc.framework.alpha.exceptions.RpcError">
<em class="property">exception </em><code class="descclassname">grpc.framework.alpha.exceptions.</code><code class="descname">RpcError</code><a class="reference internal" href="_modules/grpc/framework/alpha/exceptions.html#RpcError"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.exceptions.RpcError" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">exceptions.Exception</span></code></p>
<p>Common super type for all exceptions raised by GRPC.</p>
</dd></dl>

</div>
<div class="section" id="module-grpc.framework.alpha.interfaces">
<span id="grpc-framework-alpha-interfaces-module"></span><h2>grpc.framework.alpha.interfaces module<a class="headerlink" href="#module-grpc.framework.alpha.interfaces" title="Permalink to this headline">¶</a></h2>
<p>Interfaces of GRPC.</p>
<dl class="class">
<dt id="grpc.framework.alpha.interfaces.Abortion">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">Abortion</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#Abortion"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.Abortion" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">enum.Enum</span></code></p>
<p>Categories of RPC abortion.</p>
</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.CancellableIterator">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">CancellableIterator</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#CancellableIterator"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.CancellableIterator" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">object</span></code></p>
<p>Implements the Iterator protocol and affords a cancel method.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.CancellableIterator.__iter__">
<code class="descname">__iter__</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#CancellableIterator.__iter__"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.CancellableIterator.__iter__" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns the self object in accordance with the Iterator protocol.</p>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.CancellableIterator.cancel">
<code class="descname">cancel</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#CancellableIterator.cancel"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.CancellableIterator.cancel" title="Permalink to this definition">¶</a></dt>
<dd><p>Requests cancellation of whatever computation underlies this iterator.</p>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.CancellableIterator.next">
<code class="descname">next</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#CancellableIterator.next"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.CancellableIterator.next" title="Permalink to this definition">¶</a></dt>
<dd><p>Returns a value or raises StopIteration per the Iterator protocol.</p>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.Cardinality">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">Cardinality</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#Cardinality"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.Cardinality" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">enum.Enum</span></code></p>
<p>Constants for the four cardinalities of RPC.</p>
</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.RpcContext">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">RpcContext</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcContext"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcContext" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">object</span></code></p>
<p>Provides RPC-related information and action.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcContext.add_abortion_callback">
<code class="descname">add_abortion_callback</code><span class="sig-paren">(</span><em>abortion_callback</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcContext.add_abortion_callback"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcContext.add_abortion_callback" title="Permalink to this definition">¶</a></dt>
<dd><p>Registers a callback to be called if the RPC is aborted.
:param abortion_callback: A callable to be called and passed an Abortion value</p>
<blockquote>
<div>in the event of RPC abortion.</div></blockquote>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcContext.is_active">
<code class="descname">is_active</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcContext.is_active"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcContext.is_active" title="Permalink to this definition">¶</a></dt>
<dd><p>Describes whether the RPC is active or has terminated.</p>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcContext.time_remaining">
<code class="descname">time_remaining</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcContext.time_remaining"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcContext.time_remaining" title="Permalink to this definition">¶</a></dt>
<dd><p>Describes the length of allowed time remaining for the RPC.
:returns: A nonnegative float indicating the length of allowed time in seconds</p>
<blockquote>
<div>remaining for the RPC to complete before it is considered to have timed
out.</div></blockquote>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.RpcMethodDescription">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">RpcMethodDescription</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodDescription"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodDescription" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">object</span></code></p>
<p>A type for the common aspects of RPC method descriptions.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodDescription.cardinality">
<code class="descname">cardinality</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodDescription.cardinality"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodDescription.cardinality" title="Permalink to this definition">¶</a></dt>
<dd><p>Identifies the cardinality of this RpcMethodDescription.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">A Cardinality value identifying whether or not this
RpcMethodDescription is request-unary or request-streaming and
whether or not it is response-unary or response-streaming.</td>
</tr>
</tbody>
</table>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.RpcMethodInvocationDescription">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">RpcMethodInvocationDescription</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodInvocationDescription"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodInvocationDescription" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#grpc.framework.alpha.interfaces.RpcMethodDescription" title="grpc.framework.alpha.interfaces.RpcMethodDescription"><code class="xref py py-class docutils literal"><span class="pre">grpc.framework.alpha.interfaces.RpcMethodDescription</span></code></a></p>
<p>Invocation-side description of an RPC method.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodInvocationDescription.deserialize_response">
<code class="descname">deserialize_response</code><span class="sig-paren">(</span><em>serialized_response</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodInvocationDescription.deserialize_response"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodInvocationDescription.deserialize_response" title="Permalink to this definition">¶</a></dt>
<dd><p>Deserializes a response value.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>serialized_response</strong> &#8211; A bytestring that is the serialization of a response
value appropriate for the RPC method described by this
RpcMethodInvocationDescription.</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">A response value corresponding to the given bytestring.</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodInvocationDescription.serialize_request">
<code class="descname">serialize_request</code><span class="sig-paren">(</span><em>request</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodInvocationDescription.serialize_request"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodInvocationDescription.serialize_request" title="Permalink to this definition">¶</a></dt>
<dd><p>Serializes a request value.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>request</strong> &#8211; A request value appropriate for the RPC method described by this
RpcMethodInvocationDescription.</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The serialization of the given request value as a
bytestring.</td>
</tr>
</tbody>
</table>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">RpcMethodServiceDescription</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="#grpc.framework.alpha.interfaces.RpcMethodDescription" title="grpc.framework.alpha.interfaces.RpcMethodDescription"><code class="xref py py-class docutils literal"><span class="pre">grpc.framework.alpha.interfaces.RpcMethodDescription</span></code></a></p>
<p>Service-side description of an RPC method.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription.deserialize_request">
<code class="descname">deserialize_request</code><span class="sig-paren">(</span><em>serialized_request</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription.deserialize_request"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription.deserialize_request" title="Permalink to this definition">¶</a></dt>
<dd><p>Deserializes a request value.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>serialized_request</strong> &#8211; A bytestring that is the serialization of a request
value appropriate for the RPC method described by this
RpcMethodServiceDescription.</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">A request value corresponding to the given bytestring.</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription.serialize_response">
<code class="descname">serialize_response</code><span class="sig-paren">(</span><em>response</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription.serialize_response"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription.serialize_response" title="Permalink to this definition">¶</a></dt>
<dd><p>Serializes a response value.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><strong>response</strong> &#8211; A response value appropriate for the RPC method described by
this RpcMethodServiceDescription.</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body">The serialization of the given response value as a
bytestring.</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_stream_stream">
<code class="descname">service_stream_stream</code><span class="sig-paren">(</span><em>request_iterator</em>, <em>context</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription.service_stream_stream"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_stream_stream" title="Permalink to this definition">¶</a></dt>
<dd><p>Carries out this RPC.</p>
<p>This method may only be called if the cardinality of this
RpcMethodServiceDescription is Cardinality.STREAM_STREAM.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_iterator</strong> &#8211; An iterator of request values appropriate for the RPC
method described by this RpcMethodServiceDescription.</li>
<li><strong>context</strong> &#8211; An RpcContext object for the RPC.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Yields:</th><td class="field-body"><p class="first last">Zero or more response values appropriate for the RPC method described by
this RpcMethodServiceDescription.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_stream_unary">
<code class="descname">service_stream_unary</code><span class="sig-paren">(</span><em>request_iterator</em>, <em>context</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription.service_stream_unary"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_stream_unary" title="Permalink to this definition">¶</a></dt>
<dd><p>Carries out this RPC.</p>
<p>This method may only be called if the cardinality of this
RpcMethodServiceDescription is Cardinality.STREAM_UNARY.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_iterator</strong> &#8211; An iterator of request values appropriate for the RPC
method described by this RpcMethodServiceDescription.</li>
<li><strong>context</strong> &#8211; An RpcContext object for the RPC.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A response value appropriate for the RPC method described by this
RpcMethodServiceDescription.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_unary_stream">
<code class="descname">service_unary_stream</code><span class="sig-paren">(</span><em>request</em>, <em>context</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription.service_unary_stream"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_unary_stream" title="Permalink to this definition">¶</a></dt>
<dd><p>Carries out this RPC.</p>
<p>This method may only be called if the cardinality of this
RpcMethodServiceDescription is Cardinality.UNARY_STREAM.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request</strong> &#8211; A request value appropriate for the RPC method described by this
RpcMethodServiceDescription.</li>
<li><strong>context</strong> &#8211; An RpcContext object for the RPC.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Yields:</th><td class="field-body"><p class="first last">Zero or more response values appropriate for the RPC method described by
this RpcMethodServiceDescription.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_unary_unary">
<code class="descname">service_unary_unary</code><span class="sig-paren">(</span><em>request</em>, <em>context</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#RpcMethodServiceDescription.service_unary_unary"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.RpcMethodServiceDescription.service_unary_unary" title="Permalink to this definition">¶</a></dt>
<dd><p>Carries out this RPC.</p>
<p>This method may only be called if the cardinality of this
RpcMethodServiceDescription is Cardinality.UNARY_UNARY.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request</strong> &#8211; A request value appropriate for the RPC method described by this
RpcMethodServiceDescription.</li>
<li><strong>context</strong> &#8211; An RpcContext object for the RPC.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A response value appropriate for the RPC method described by this
RpcMethodServiceDescription.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.Server">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">Server</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#Server"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.Server" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <a class="reference internal" href="grpc.framework.foundation.html#grpc.framework.foundation.activated.Activated" title="grpc.framework.foundation.activated.Activated"><code class="xref py py-class docutils literal"><span class="pre">grpc.framework.foundation.activated.Activated</span></code></a></p>
<p>A GRPC Server.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.Server.port">
<code class="descname">port</code><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#Server.port"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.Server.port" title="Permalink to this definition">¶</a></dt>
<dd><p>Reports the port on which the server is serving.</p>
<p>This method may only be called while the server is activated.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">The port on which the server is serving.</td>
</tr>
</tbody>
</table>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.StreamUnarySyncAsync">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">StreamUnarySyncAsync</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#StreamUnarySyncAsync"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.StreamUnarySyncAsync" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">object</span></code></p>
<p>Affords invoking a stream-unary RPC synchronously or asynchronously.
Values implementing this interface are directly callable and present an
&#8220;async&#8221; method. Both calls take an iterator of request values and a numeric
timeout. Direct invocation of a value of this type invokes its associated RPC
and blocks until the RPC&#8217;s response is available. Calling the &#8220;async&#8221; method
of a value of this type invokes its associated RPC and immediately returns a
future.Future bound to the asynchronous execution of the RPC.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.StreamUnarySyncAsync.__call__">
<code class="descname">__call__</code><span class="sig-paren">(</span><em>request_iterator</em>, <em>timeout</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#StreamUnarySyncAsync.__call__"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.StreamUnarySyncAsync.__call__" title="Permalink to this definition">¶</a></dt>
<dd><p>Synchronously invokes the underlying RPC.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_iterator</strong> &#8211; An iterator that yields request values for the RPC.</li>
<li><strong>timeout</strong> &#8211; A duration of time in seconds to allow for the RPC.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">The response value for the RPC.</p>
</td>
</tr>
<tr class="field-odd field"><th class="field-name">Raises:</th><td class="field-body"><p class="first last"><code class="xref py py-exc docutils literal"><span class="pre">exceptions.RpcError</span></code> &#8211;
Indicating that the RPC was aborted.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.StreamUnarySyncAsync.async">
<code class="descname">async</code><span class="sig-paren">(</span><em>request_iterator</em>, <em>timeout</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#StreamUnarySyncAsync.async"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.StreamUnarySyncAsync.async" title="Permalink to this definition">¶</a></dt>
<dd><p>Asynchronously invokes the underlying RPC.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_iterator</strong> &#8211; An iterator that yields request values for the RPC.</li>
<li><strong>timeout</strong> &#8211; A duration of time in seconds to allow for the RPC.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">A future.Future representing the RPC. In the event of RPC completion, the
returned Future&#8217;s result value will be the response value of the RPC.
In the event of RPC abortion, the returned Future&#8217;s exception value
will be an exceptions.RpcError.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.Stub">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">Stub</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#Stub"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.Stub" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">object</span></code></p>
<p>A stub with callable RPC method names for attributes.</p>
<p>Instances of this type are context managers and only afford RPC invocation
when used in context.</p>
<p>Instances of this type, when used in context, respond to attribute access
as follows: if the requested attribute is the name of a unary-unary RPC
method, the value of the attribute will be a UnaryUnarySyncAsync with which
to invoke the RPC method. If the requested attribute is the name of a
unary-stream RPC method, the value of the attribute will be a callable taking
a request object and a timeout parameter and returning a CancellableIterator
that yields the response values of the RPC. If the requested attribute is the
name of a stream-unary RPC method, the value of the attribute will be a
StreamUnarySyncAsync with which to invoke the RPC method. If the requested
attribute is the name of a stream-stream RPC method, the value of the
attribute will be a callable taking an iterator of request objects and a
timeout and returning a CancellableIterator that yields the response values
of the RPC.</p>
<p>In all cases indication of abortion is indicated by raising of
exceptions.RpcError, exceptions.CancellationError,
and exceptions.ExpirationError.</p>
</dd></dl>

<dl class="class">
<dt id="grpc.framework.alpha.interfaces.UnaryUnarySyncAsync">
<em class="property">class </em><code class="descclassname">grpc.framework.alpha.interfaces.</code><code class="descname">UnaryUnarySyncAsync</code><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#UnaryUnarySyncAsync"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.UnaryUnarySyncAsync" title="Permalink to this definition">¶</a></dt>
<dd><p>Bases: <code class="xref py py-class docutils literal"><span class="pre">object</span></code></p>
<p>Affords invoking a unary-unary RPC synchronously or asynchronously.
Values implementing this interface are directly callable and present an
&#8220;async&#8221; method. Both calls take a request value and a numeric timeout.
Direct invocation of a value of this type invokes its associated RPC and
blocks until the RPC&#8217;s response is available. Calling the &#8220;async&#8221; method
of a value of this type invokes its associated RPC and immediately returns a
future.Future bound to the asynchronous execution of the RPC.</p>
<dl class="method">
<dt id="grpc.framework.alpha.interfaces.UnaryUnarySyncAsync.__call__">
<code class="descname">__call__</code><span class="sig-paren">(</span><em>request</em>, <em>timeout</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#UnaryUnarySyncAsync.__call__"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.UnaryUnarySyncAsync.__call__" title="Permalink to this definition">¶</a></dt>
<dd><p>Synchronously invokes the underlying RPC.
:param request: The request value for the RPC.
:param timeout: A duration of time in seconds to allow for the RPC.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">The response value for the RPC.</td>
</tr>
<tr class="field-even field"><th class="field-name">Raises:</th><td class="field-body"><code class="xref py py-exc docutils literal"><span class="pre">exceptions.RpcError</span></code> &#8211;
Indicating that the RPC was aborted.</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="method">
<dt id="grpc.framework.alpha.interfaces.UnaryUnarySyncAsync.async">
<code class="descname">async</code><span class="sig-paren">(</span><em>request</em>, <em>timeout</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/interfaces.html#UnaryUnarySyncAsync.async"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.interfaces.UnaryUnarySyncAsync.async" title="Permalink to this definition">¶</a></dt>
<dd><p>Asynchronously invokes the underlying RPC.
:param request: The request value for the RPC.
:param timeout: A duration of time in seconds to allow for the RPC.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">A future.Future representing the RPC. In the event of RPC completion, the
returned Future&#8217;s result value will be the response value of the RPC.
In the event of RPC abortion, the returned Future&#8217;s exception value
will be an exceptions.RpcError.</td>
</tr>
</tbody>
</table>
</dd></dl>

</dd></dl>

</div>
<div class="section" id="module-grpc.framework.alpha.utilities">
<span id="grpc-framework-alpha-utilities-module"></span><h2>grpc.framework.alpha.utilities module<a class="headerlink" href="#module-grpc.framework.alpha.utilities" title="Permalink to this headline">¶</a></h2>
<p>Utilities for use with GRPC.</p>
<dl class="function">
<dt id="grpc.framework.alpha.utilities.stream_stream_invocation_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">stream_stream_invocation_description</code><span class="sig-paren">(</span><em>request_serializer</em>, <em>response_deserializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#stream_stream_invocation_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.stream_stream_invocation_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodInvocationDescription for an RPC method.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_serializer</strong> &#8211; A callable that when called on a request
value returns a bytestring corresponding to that value.</li>
<li><strong>response_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the response value corresponding to
that bytestring.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodInvocationDescription constructed from the given
arguments representing a  streaming-request/streaming-response RPC
method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.stream_stream_service_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">stream_stream_service_description</code><span class="sig-paren">(</span><em>behavior</em>, <em>request_deserializer</em>, <em>response_serializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#stream_stream_service_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.stream_stream_service_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodServiceDescription for the given behavior.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>behavior</strong> &#8211; A callable that implements a stream-stream RPC
method that accepts an iterator of zero or more requests
and an interfaces.RpcContext and returns an iterator of
zero or more responses.</li>
<li><strong>request_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the request value corresponding to that
bytestring.</li>
<li><strong>response_serializer</strong> &#8211; A callable that when called on a
response value returns the bytestring corresponding to
that value.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodServiceDescription constructed from the given
arguments representing a
streaming-request/streaming-response RPC method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.stream_unary_invocation_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">stream_unary_invocation_description</code><span class="sig-paren">(</span><em>request_serializer</em>, <em>response_deserializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#stream_unary_invocation_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.stream_unary_invocation_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodInvocationDescription for an RPC method.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_serializer</strong> &#8211; A callable that when called on a request
value returns a bytestring corresponding to that value.</li>
<li><strong>response_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the response value corresponding to
that bytestring.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodInvocationDescription constructed from the given
arguments representing a streaming-request/unary-response RPC method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.stream_unary_service_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">stream_unary_service_description</code><span class="sig-paren">(</span><em>behavior</em>, <em>request_deserializer</em>, <em>response_serializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#stream_unary_service_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.stream_unary_service_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodServiceDescription for the given behavior.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>behavior</strong> &#8211; A callable that implements a stream-unary RPC
method that accepts an iterator of zero or more requests
and an interfaces.RpcContext and returns a single response.</li>
<li><strong>request_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the request value corresponding to that
bytestring.</li>
<li><strong>response_serializer</strong> &#8211; A callable that when called on a
response value returns the bytestring corresponding to
that value.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodServiceDescription constructed from the given
arguments representing a streaming-request/unary-response
RPC method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.unary_stream_invocation_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">unary_stream_invocation_description</code><span class="sig-paren">(</span><em>request_serializer</em>, <em>response_deserializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#unary_stream_invocation_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.unary_stream_invocation_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodInvocationDescription for an RPC method.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_serializer</strong> &#8211; A callable that when called on a request
value returns a bytestring corresponding to that value.</li>
<li><strong>response_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the response value corresponding to
that bytestring.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodInvocationDescription constructed from the given
arguments representing a unary-request/streaming-response RPC method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.unary_stream_service_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">unary_stream_service_description</code><span class="sig-paren">(</span><em>behavior</em>, <em>request_deserializer</em>, <em>response_serializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#unary_stream_service_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.unary_stream_service_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodServiceDescription for the given behavior.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>behavior</strong> &#8211; A callable that implements a unary-stream RPC
method that accepts a single request and an interfaces.RpcContext
and returns an iterator of zero or more responses.</li>
<li><strong>request_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the request value corresponding to that
bytestring.</li>
<li><strong>response_serializer</strong> &#8211; A callable that when called on a
response value returns the bytestring corresponding to
that value.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodServiceDescription constructed from the given
arguments representing a unary-request/streaming-response
RPC method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.unary_unary_invocation_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">unary_unary_invocation_description</code><span class="sig-paren">(</span><em>request_serializer</em>, <em>response_deserializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#unary_unary_invocation_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.unary_unary_invocation_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodInvocationDescription for an RPC method.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>request_serializer</strong> &#8211; A callable that when called on a request
value returns a bytestring corresponding to that value.</li>
<li><strong>response_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the response value corresponding to
that bytestring.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodInvocationDescription constructed from the given
arguments representing a unary-request/unary-response RPC method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

<dl class="function">
<dt id="grpc.framework.alpha.utilities.unary_unary_service_description">
<code class="descclassname">grpc.framework.alpha.utilities.</code><code class="descname">unary_unary_service_description</code><span class="sig-paren">(</span><em>behavior</em>, <em>request_deserializer</em>, <em>response_serializer</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/grpc/framework/alpha/utilities.html#unary_unary_service_description"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#grpc.framework.alpha.utilities.unary_unary_service_description" title="Permalink to this definition">¶</a></dt>
<dd><p>Creates an interfaces.RpcMethodServiceDescription for the given behavior.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
<li><strong>behavior</strong> &#8211; A callable that implements a unary-unary RPC
method that accepts a single request and an interfaces.RpcContext and
returns a single response.</li>
<li><strong>request_deserializer</strong> &#8211; A callable that when called on a
bytestring returns the request value corresponding to that
bytestring.</li>
<li><strong>response_serializer</strong> &#8211; A callable that when called on a
response value returns the bytestring corresponding to
that value.</li>
</ul>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first last">An interfaces.RpcMethodServiceDescription constructed from the given
arguments representing a unary-request/unary-response RPC
method.</p>
</td>
</tr>
</tbody>
</table>
</dd></dl>

</div>
<div class="section" id="module-grpc.framework.alpha">
<span id="module-contents"></span><h2>Module contents<a class="headerlink" href="#module-grpc.framework.alpha" title="Permalink to this headline">¶</a></h2>
</div>
</div>


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