unary
fun <RequestT, ResponseT> unaryRpcFunction(channel: Channel, method: MethodDescriptor<RequestT, ResponseT>, callOptions: CallOptions = CallOptions.DEFAULT, headers: suspend () -> Metadata = { GrpcMetadata() }): suspend (RequestT) -> ResponseT(source)
Returns a function object representing a unary RPC.
The input headers may be asynchronously formed. headers will be called each time the returned RPC is called - the headers are not cached.