code: def standard_gamma(shape, size=None):
      return ivy.gamma(shape, 1.0, shape=size, dtype="float64")
  
imports: import ivy
  from ivy.functional.frontends.numpy.func_wrapper import to_ivy_arrays_and_back, from_zero_dim_arrays_to_scalar
  from ivy import with_supported_dtypes
label_desc: Use image node_id 27 for calling a global function with example usage: standard_gamma(shape, size) and returns: ivy