code: def einsum(equation, *operands):
      if len(operands) == 1 and isinstance(operands[0], (list, tuple)):
          operands = operands[0]
      return ivy.einsum(equation, *operands)
  
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
  from ivy.functional.frontends.torch import promote_types_of_torch_inputs
  import ivy.functional.frontends.torch
label_desc: Use image node_id 20 for calling a global function with example usage: einsum(equation) and returns: ivy