def METHOD_NAME(self):
    """Called when the transport's buffer goes over the high-water mark.
    Pause and resume calls are paired -- pause_writing() is called
    once when the buffer goes strictly over the high-water mark
    (even if subsequent writes increases the buffer size even
    more), and eventually resume_writing() is called once when the
    buffer size reaches the low-water mark.
    Note that if the buffer size equals the high-water mark,
    pause_writing() is not called -- it must go strictly over.
    Conversely, resume_writing() is called when the buffer size is
    equal or lower than the low-water mark.  These end conditions
    are important to ensure that things go as expected when either
    mark is zero.
    NOTE: This is the only Protocol callback that is not called
    through EventLoop.call_soon() -- if it were, it would have no
    effect when it's most needed (when the app keeps writing
    without yielding until pause_writing() is called).
    """