code: def _rate_dispatcher(
      nper, pmt, pv, fv, when=None, guess=None, tol=None, maxiter=None
  ):
      return (nper, pmt, 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 16 for calling a global function with example usage: _rate_dispatcher(nper, pmt, pv, fv, when, guess, tol, maxiter) and returns: nper,  pmt,  pv,  fv