def set_no_flow_timeout() -> None:
"""Disables flow timeout (it means wait forever).
Returns:
Nothing.
"""
_timeout.set_timeout(None)
def set_flow_timeout(timeout: int) -> None:
"""Sets flow timeout.
Args:
timeout: timeout in seconds. 0 means not to wait.
Returns:
Nothing.
"""
if timeout is None:
raise ValueError('Timeout is not specified')
if timeout < 0:
raise ValueError('Timeout cannot be negative')
_timeout.set_timeout(timeout)
