Resource name of the Message, of the form projects/{project_id}/locations/{location_id}/datasets/{dataset_id}/hl7V2Stores/{hl7_v2_store_id}/messages/{message_id}. Assigned by the server.
projects/{project_id}/locations/{location_id}/datasets/{dataset_id}/hl7V2Stores/{hl7_v2_store_id}/messages/{message_id}