Err returns the terminal error after Done is closed, or nil on clean close.
()
| 138 | Done() <-chan struct{} |
| 139 | // Err returns the terminal error after Done is closed, or nil on clean close. |
| 140 | Err() error |
| 141 | // Close tears down the connection. |
| 142 | Close() error |
| 143 | } |
no outgoing calls