[ Version ( since = "0.17.6" ) ]
public async bool request_hold_async (bool hold) throws Error
Requests that the connection manager holds or unholds the call.
Watch hold_state property to know when the channel goes on hold or is unheld. Unholding may fail if the streaming implementation can not obtain all the resources needed to restart the call.
| this | |
| hold |
Whether to request a hold or a unhold |
| callback |
a callback to call when the operation finishes |
| user_data |
data to pass to |