code: def as_dimension(value):
      """Converts the given value to a Dimension.
  
      A Dimension input will be returned unmodified.
      An input of `None` will be converted to an unknown Dimension.
      An integer input will be converted to a Dimension with that value.
  
      Args:
        value: The value to be converted.
  
      Returns:
        A Dimension corresponding to the given value.
      """
      if isinstance(value, Dimension):
          return value
      else:
          return Dimension(value)
  
imports: from .None import compat, dtypes
  from tensorboard.compat.proto import tensor_shape_pb2
label_desc: Use image node_id 1 for calling a global function with example usage: as_dimension(value) and returns: value, Dimension