is_closing(self) Return True if the transport is closing or is closed.

coroutine read(n=-1) Read up to n bytes. If n is not provided, or set to -1, read until EOF and

print_stack(*, limit=None, file=None) Print the stack or traceback for this task’s coroutine. This

coroutine wait() Wait until notified. If the calling coroutine has not acquired the lock when