code: def _fill_diagonal_dispatcher(a, val, wrap=None):
      return (a,)
  
imports: import functools
  import sys
  import math
  import warnings
  import numpy
  from .._utils import set_module
  import numpy.core.numeric
  from numpy.core.numeric import ScalarType, array
  from numpy.core.numerictypes import issubdtype
  import numpy.matrixlib
  from .function_base import diff
  from numpy.core.multiarray import ravel_multi_index, unravel_index
  from numpy.core import overrides, linspace
  from numpy.lib.stride_tricks import as_strided
label_desc: Use image node_id 3 for calling a global function with example usage: _fill_diagonal_dispatcher(a, val, wrap) and returns: a