def __init__(self, optimizer, clipping_value, scope='<STR_LIT>', summary_labels=()):
assert isinstance(clipping_value, float) and clipping_value > <NUM_LIT:0.0><EOL>self.clipping_value = clipping_value<EOL>super(ClippedStep, self).__init__(optimizer=optimizer, scope=scope, summary_labels=summary_labels)<EOL>
Creates a new multi-step meta optimizer instance.

Args:
    optimizer: The optimizer which is modified by this meta optimizer.
    clipping_value: Clip deltas at this value.