(self, iterations, num_steps=None, last_step=None)
Initializes a `StopAtStepHook`.

    Args:
      iterations: The number of iterations to run optimizer per training loop.
      num_steps: Number of steps to execute.
      last_step: Step after which to stop.

    Raises:
      ValueError: If one of the arguments is invalid.
Initializes a `StopAtStepHook`.
Initializes a StopAtStepHook .
def __init__(self, iterations, num_steps=None, last_step=None):
    """Initializes a `StopAtStepHook`.

    Args:
      iterations: The number of iterations to run optimizer per training loop.
      num_steps: Number of steps to execute.
      last_step: Step after which to stop.

    Raises:
      ValueError: If one of the arguments is invalid.
    """
    if num_steps is None and last_step is None:
      raise ValueError('One of num_steps or last_step must be specified.')
    if num_steps is not None and last_step is not None:
      raise ValueError('Only one of num_steps or last_step can be specified.')
    self._num_steps = num_steps
    self._last_step = last_step
    self._iterations = iterations
def __init__ ( self , iterations , num_steps = None , last_step = None ) : if num_steps is None and last_step is None : raise ValueError ( 'One of num_steps or last_step must be specified.' ) if num_steps is not None and last_step is not None : raise ValueError ( 'Only one of num_steps or last_step can be specified.' ) self . _num_steps = num_steps self . _last_step = last_step self . _iterations = iterations