code: def append(arr, values, axis=None):
      if axis is None:
          return ivy.concat(
              (ivy.flatten(arr), ivy.flatten(values)), axis=0
          )
      else:
          return ivy.concat((arr, values), axis=axis)
  
imports: from collections import namedtuple
  import ivy
  from ivy.functional.frontends.numpy.func_wrapper import to_ivy_arrays_and_back
label_desc: Use image node_id 1 for calling a global function with example usage: append(arr, values, axis) and returns: ivy, ivy