code: def flip(
      x: np.ndarray,
      /,
      *,
      copy: Optional[bool] = None,
      axis: Optional[Union[int, Sequence[int]]] = None,
      out: Optional[np.ndarray] = None,
  ) -> np.ndarray:
      if copy:
          x = x.copy()
      num_dims = len(x.shape)
      if not num_dims:
          return x
      if axis is None:
          axis = list(range(num_dims))
      if isinstance(axis, int):
          axis = [axis]
      axis = [item + num_dims if item < 0 else item for item in axis]
      return np.flip(x, axis)
  
imports: import math
  from numbers import Number
  from typing import Union, Tuple, Optional, List, Sequence
  import numpy
  import ivy
  from ivy.func_wrapper import with_unsupported_dtypes
  from .None import backend_version
label_desc: Use image node_id 4 for calling a global function with example usage: flip() and returns: np, x