Send a JSON-RPC request requestMessage and return its result Json
(throwing McpException on an error response). The id to await is
expectId. Interleaved notifications and server->client requests seen
while awaiting are dispatched to the inbound handler.
Send a JSON-RPC request requestMessage and return its result Json (throwing McpException on an error response). The id to await is expectId. Interleaved notifications and server->client requests seen while awaiting are dispatched to the inbound handler.