code: def _ipmt_dispatcher(rate, per, nper, pv, fv=None, when=None):
      return (rate, per, nper, pv, fv)
  
imports: from __future__ import division, absolute_import, print_function
  from decimal import Decimal
  import functools
  import numpy
  from numpy.core import overrides
label_desc: Use image node_id 8 for calling a global function with example usage: _ipmt_dispatcher(rate, per, nper, pv, fv, when) and returns: rate,  per,  nper,  pv,  fv