Token that can be used for cancelling the call on the client side. Cancelling the token will request cancellation of the remote call. Best effort will be made to deliver the cancellation notification to the server and interaction of the call with the server side will be terminated. Unless the call finishes before the cancellation could happen (there is an inherent race), the call will finish with StatusCode.Cancelled status.

Credentials to use for this call.

Call deadline.

Headers to send at the beginning of the call.

Token for propagating parent call context.

Write options that will be used for this call.