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<div class="textblock"><code>#include &lt;inttypes.h&gt;</code><br/>
<code>#include &lt;stdarg.h&gt;</code><br/>
<code>#include &lt;stdlib.h&gt;</code><br/>
<code>#include &lt;<a class="el" href="impl_2codegen_2port__platform_8h_source.html">grpc/impl/codegen/port_platform.h</a>&gt;</code><br/>
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<p><a href="log_8h_source.html">Go to the source code of this file.</a></p>
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Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structgpr__log__func__args.html">gpr_log_func_args</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Log overrides: applications can use this API to intercept logging calls and use their own implementations.  <a href="structgpr__log__func__args.html#details">More...</a><br/></td></tr>
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Macros</h2></td></tr>
<tr class="memitem:afce870efb3d4bff38f747f79cb6c0f18"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#afce870efb3d4bff38f747f79cb6c0f18">GPR_LOG_VERBOSITY_UNSET</a>&#160;&#160;&#160;-1</td></tr>
<tr class="separator:afce870efb3d4bff38f747f79cb6c0f18"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3e793245091f13bb7318a18b1166a773"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#a3e793245091f13bb7318a18b1166a773">GPR_DEBUG</a>&#160;&#160;&#160;__FILE__, __LINE__, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48af7d2a0ad91b0787398220ddcd91f06d6">GPR_LOG_SEVERITY_DEBUG</a></td></tr>
<tr class="memdesc:a3e793245091f13bb7318a18b1166a773"><td class="mdescLeft">&#160;</td><td class="mdescRight">Macros to build log contexts at various severity levels.  <a href="#a3e793245091f13bb7318a18b1166a773">More...</a><br/></td></tr>
<tr class="separator:a3e793245091f13bb7318a18b1166a773"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af0d0d75690f79edc9294498c88f96703"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#af0d0d75690f79edc9294498c88f96703">GPR_INFO</a>&#160;&#160;&#160;__FILE__, __LINE__, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48af6c13c67f06821c1629b7e019af4aaf1">GPR_LOG_SEVERITY_INFO</a></td></tr>
<tr class="separator:af0d0d75690f79edc9294498c88f96703"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a63faedb3eefd93d1c0e79974be80cc36"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#a63faedb3eefd93d1c0e79974be80cc36">GPR_ERROR</a>&#160;&#160;&#160;__FILE__, __LINE__, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48a52b957eb23ac2207b5e1dcf15c2b3dd4">GPR_LOG_SEVERITY_ERROR</a></td></tr>
<tr class="separator:a63faedb3eefd93d1c0e79974be80cc36"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6ccf52ff690655cc22cd9d053650876f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#a6ccf52ff690655cc22cd9d053650876f">GPR_ASSERT</a>(x)</td></tr>
<tr class="memdesc:a6ccf52ff690655cc22cd9d053650876f"><td class="mdescLeft">&#160;</td><td class="mdescRight">abort() the process if x is zero, having written a line to the log.  <a href="#a6ccf52ff690655cc22cd9d053650876f">More...</a><br/></td></tr>
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Typedefs</h2></td></tr>
<tr class="memitem:ad49303346a78cf4881129958214fde8d"><td class="memItemLeft" align="right" valign="top">typedef enum <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#ad49303346a78cf4881129958214fde8d">gpr_log_severity</a></td></tr>
<tr class="memdesc:ad49303346a78cf4881129958214fde8d"><td class="mdescLeft">&#160;</td><td class="mdescRight">GPR log API.  <a href="#ad49303346a78cf4881129958214fde8d">More...</a><br/></td></tr>
<tr class="separator:ad49303346a78cf4881129958214fde8d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a23f29195676c33c61ff08a7f0a3e69b0"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#a23f29195676c33c61ff08a7f0a3e69b0">gpr_log_func</a> )(<a class="el" href="structgpr__log__func__args.html">gpr_log_func_args</a> *args)</td></tr>
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Enumerations</h2></td></tr>
<tr class="memitem:af10334b4085ac6985a2af9c08478ad48"><td class="memItemLeft" align="right" valign="top">enum &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a> { <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48af7d2a0ad91b0787398220ddcd91f06d6">GPR_LOG_SEVERITY_DEBUG</a>, 
<a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48af6c13c67f06821c1629b7e019af4aaf1">GPR_LOG_SEVERITY_INFO</a>, 
<a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48a52b957eb23ac2207b5e1dcf15c2b3dd4">GPR_LOG_SEVERITY_ERROR</a>
 }</td></tr>
<tr class="memdesc:af10334b4085ac6985a2af9c08478ad48"><td class="mdescLeft">&#160;</td><td class="mdescRight">GPR log API.  <a href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">More...</a><br/></td></tr>
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Functions</h2></td></tr>
<tr class="memitem:ae794448965328d305d0b44417199a915"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> const char *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#ae794448965328d305d0b44417199a915">gpr_log_severity_string</a> (<a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a> severity)</td></tr>
<tr class="memdesc:ae794448965328d305d0b44417199a915"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a string representation of the log severity.  <a href="#ae794448965328d305d0b44417199a915">More...</a><br/></td></tr>
<tr class="separator:ae794448965328d305d0b44417199a915"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a938a283d9a10c3ddfe46dfc22e21077f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#a938a283d9a10c3ddfe46dfc22e21077f">gpr_log</a> (const char *file, int line, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a> severity, const char *format,...) <a class="el" href="impl_2codegen_2port__platform_8h.html#a3364659cddcdfeae3897c3300de03d05">GPR_PRINT_FORMAT_CHECK</a>(4</td></tr>
<tr class="memdesc:a938a283d9a10c3ddfe46dfc22e21077f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Log a message.  <a href="#a938a283d9a10c3ddfe46dfc22e21077f">More...</a><br/></td></tr>
<tr class="separator:a938a283d9a10c3ddfe46dfc22e21077f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aef4961ab05362b455a3e89c06343ef74"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void <a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#aef4961ab05362b455a3e89c06343ef74">gpr_log_message</a> (const char *file, int line, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a> severity, const char *message)</td></tr>
<tr class="separator:aef4961ab05362b455a3e89c06343ef74"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aec0c537cb1e244060c65d9d9d153979f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#aec0c537cb1e244060c65d9d9d153979f">gpr_set_log_verbosity</a> (<a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a> min_severity_to_print)</td></tr>
<tr class="memdesc:aec0c537cb1e244060c65d9d9d153979f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Set global log verbosity.  <a href="#aec0c537cb1e244060c65d9d9d153979f">More...</a><br/></td></tr>
<tr class="separator:aec0c537cb1e244060c65d9d9d153979f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a920f1611251015a9806177ed78931aa5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#a920f1611251015a9806177ed78931aa5">gpr_log_verbosity_init</a> (void)</td></tr>
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<tr class="memitem:ae437062e3540eeebb4c95f119fe56be5"><td class="memItemLeft" align="right" valign="top"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="log_8h.html#ae437062e3540eeebb4c95f119fe56be5">gpr_set_log_function</a> (<a class="el" href="log_8h.html#a23f29195676c33c61ff08a7f0a3e69b0">gpr_log_func</a> func)</td></tr>
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<h2 class="groupheader">Macro Definition Documentation</h2>
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          <td class="memname">#define GPR_ASSERT</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">x</td><td>)</td>
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<b>Value:</b><div class="fragment"><div class="line"><span class="keywordflow">do</span> {                                                \</div>
<div class="line">    if (!(x)) {                                       <a class="code" href="log_8h.html#a938a283d9a10c3ddfe46dfc22e21077f">\</a></div>
<div class="line"><a class="code" href="log_8h.html#a938a283d9a10c3ddfe46dfc22e21077f">      gpr_log</a>(<a class="code" href="log_8h.html#a63faedb3eefd93d1c0e79974be80cc36">GPR_ERROR</a>, <span class="stringliteral">&quot;assertion failed: %s&quot;</span>, #x); \</div>
<div class="line">      abort();                                        \</div>
<div class="line">    }                                                 \</div>
<div class="line">  } <span class="keywordflow">while</span> (0)</div>
<div class="ttc" id="log_8h_html_a63faedb3eefd93d1c0e79974be80cc36"><div class="ttname"><a href="log_8h.html#a63faedb3eefd93d1c0e79974be80cc36">GPR_ERROR</a></div><div class="ttdeci">#define GPR_ERROR</div><div class="ttdef"><b>Definition:</b> log.h:58</div></div>
<div class="ttc" id="log_8h_html_a938a283d9a10c3ddfe46dfc22e21077f"><div class="ttname"><a href="log_8h.html#a938a283d9a10c3ddfe46dfc22e21077f">gpr_log</a></div><div class="ttdeci">GPRAPI void gpr_log(const char *file, int line, gpr_log_severity severity, const char *format,...) GPR_PRINT_FORMAT_CHECK(4</div><div class="ttdoc">Log a message. </div></div>
</div><!-- fragment -->
<p>abort() the process if x is zero, having written a line to the log. </p>
<p>Intended for internal invariants. If the error can be recovered from, without the possibility of corruption, or might best be reflected via an exception in a higher-level language, consider returning error code. </p>

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          <td class="memname">#define GPR_DEBUG&#160;&#160;&#160;__FILE__, __LINE__, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48af7d2a0ad91b0787398220ddcd91f06d6">GPR_LOG_SEVERITY_DEBUG</a></td>
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<p>Macros to build log contexts at various severity levels. </p>

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          <td class="memname">#define GPR_ERROR&#160;&#160;&#160;__FILE__, __LINE__, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48a52b957eb23ac2207b5e1dcf15c2b3dd4">GPR_LOG_SEVERITY_ERROR</a></td>
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          <td class="memname">#define GPR_INFO&#160;&#160;&#160;__FILE__, __LINE__, <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48af6c13c67f06821c1629b7e019af4aaf1">GPR_LOG_SEVERITY_INFO</a></td>
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          <td class="memname">#define GPR_LOG_VERBOSITY_UNSET&#160;&#160;&#160;-1</td>
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<h2 class="groupheader">Typedef Documentation</h2>
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          <td class="memname">typedef void(* gpr_log_func)(<a class="el" href="structgpr__log__func__args.html">gpr_log_func_args</a> *args)</td>
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          <td class="memname">typedef enum <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a>  <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a></td>
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<p>GPR log API. </p>
<p>Usage (within grpc):</p>
<p>int argument1 = 3; char* argument2 = "hello"; gpr_log(GPR_DEBUG, "format string %d", argument1); gpr_log(GPR_INFO, "hello world"); gpr_log(GPR_ERROR, "%d %s!!", argument1, argument2); The severity of a log message - use the #defines below when calling into gpr_log to additionally supply file and line data </p>

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<h2 class="groupheader">Enumeration Type Documentation</h2>
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          <td class="memname">enum <a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a></td>
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<p>GPR log API. </p>
<p>Usage (within grpc):</p>
<p>int argument1 = 3; char* argument2 = "hello"; gpr_log(GPR_DEBUG, "format string %d", argument1); gpr_log(GPR_INFO, "hello world"); gpr_log(GPR_ERROR, "%d %s!!", argument1, argument2); The severity of a log message - use the #defines below when calling into gpr_log to additionally supply file and line data </p>
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<tr><th colspan="2">Enumerator</th></tr><tr><td class="fieldname"><em><a class="anchor" id="af10334b4085ac6985a2af9c08478ad48af7d2a0ad91b0787398220ddcd91f06d6"></a>GPR_LOG_SEVERITY_DEBUG</em>&#160;</td><td class="fielddoc">
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<tr><td class="fieldname"><em><a class="anchor" id="af10334b4085ac6985a2af9c08478ad48af6c13c67f06821c1629b7e019af4aaf1"></a>GPR_LOG_SEVERITY_INFO</em>&#160;</td><td class="fielddoc">
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<h2 class="groupheader">Function Documentation</h2>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_log </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>file</em>, </td>
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          <td class="paramtype">int&#160;</td>
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          <td class="paramkey"></td>
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          <td class="paramtype"><a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a>&#160;</td>
          <td class="paramname"><em>severity</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>format</em>, </td>
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<p>Log a message. </p>
<p>It's advised to use GPR_xxx above to generate the context for each message </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void <a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_log_message </td>
          <td>(</td>
          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>file</em>, </td>
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          <td class="paramtype"><a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a>&#160;</td>
          <td class="paramname"><em>severity</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">const char *&#160;</td>
          <td class="paramname"><em>message</em>&#160;</td>
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          <td>)</td>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> const char* gpr_log_severity_string </td>
          <td>(</td>
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          <td class="paramname"><em>severity</em></td><td>)</td>
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<p>Returns a string representation of the log severity. </p>

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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_log_verbosity_init </td>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_set_log_function </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="log_8h.html#a23f29195676c33c61ff08a7f0a3e69b0">gpr_log_func</a>&#160;</td>
          <td class="paramname"><em>func</em></td><td>)</td>
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          <td class="memname"><a class="el" href="impl_2codegen_2port__platform_8h.html#af89d3610372fc35178e83e06916aa808">GPRAPI</a> void gpr_set_log_verbosity </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="log_8h.html#af10334b4085ac6985a2af9c08478ad48">gpr_log_severity</a>&#160;</td>
          <td class="paramname"><em>min_severity_to_print</em></td><td>)</td>
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<p>Set global log verbosity. </p>

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