layers.py 文件源码

def _create_variables(self):
    """Creates the variables associated with this layer.

    Guaranteed to be called at most once, either when the layer's call operator
    is invoked for the first time, in which case the input type will have been
    set, or when the public method create_variables is called for the first
    time. Scope will be set to this layer's vscope.

    Raises:
      TypeError: If `input_type` is invalid for this layer or isn't set.
    """
    pass