code: def prod(input, dim=None, keepdim=False, *, dtype=None):
      if not dtype:
          if "int" in input.dtype:
              dtype = ivy.int64
      return ivy.prod(input, axis=dim, dtype=dtype, keepdims=keepdim)
  
imports: import ivy
  from ivy.func_wrapper import with_unsupported_dtypes, with_supported_dtypes
  from ivy.functional.frontends.torch.func_wrapper import to_ivy_arrays_and_back, numpy_to_torch_style_args
  from collections import namedtuple
  import ivy.functional.frontends.torch
label_desc: Use image node_id 20 for calling a global function with example usage: prod(input, dim, keepdim) and returns: ivy