parameters: (x, axis=-1)
return_statement: return array_ops.expand_dims(x, axis)
docstring: Adds a 1-sized dimension at index "axis".
  
    Arguments:
        x: A tensor or variable.
        axis: Position where to add a new axis.
  
    Returns:
        A tensor with expanded dimensions.
docstring_summary: Adds a 1-sized dimension at index "axis".
docstring_tokens: Adds a 1 - sized dimension at index axis .
function: def expand_dims(x, axis=-1):
    """Adds a 1-sized dimension at index "axis".
  
    Arguments:
        x: A tensor or variable.
        axis: Position where to add a new axis.
  
    Returns:
        A tensor with expanded dimensions.
    """
    return array_ops.expand_dims(x, axis)
function_tokens: def expand_dims ( x , axis = - 1 ) : return array_ops . expand_dims ( x , axis )