code: def _numeric_arrays(arrays, kinds="buifc"):
      """
      See if a list of arrays are all numeric.
  
      Parameters
      ----------
      ndarrays : array or list of arrays
          arrays to check if numeric.
      numeric_kinds : string-like
          The dtypes of the arrays to be checked. If the dtype.kind of
          the ndarrays are not in this string the function returns False and
          otherwise returns True.
      """
      if type(arrays) == ndarray:
          return arrays.dtype.kind in kinds
      for array_ in arrays:
          if array_.dtype.kind not in kinds:
              return False
      return True
  
imports: from __future__ import division, print_function, absolute_import
  import operator
  import threading
  import sys
  import timeit
  from scipy.spatial import cKDTree
  from .None import sigtools, dlti
  from ._upfirdn import upfirdn, _output_len
  from scipy._lib.six import callable
  from scipy._lib._version import NumpyVersion
  from scipy import fftpack, linalg
  from scipy.fftpack.helper import _init_nd_shape_and_axes_sorted
  from numpy import allclose, angle, arange, argsort, array, asarray, atleast_1d, atleast_2d, cast, dot, exp, expand_dims, iscomplexobj, mean, ndarray, newaxis, ones, pi, poly, polyadd, polyder, polydiv, polymul, polysub, polyval, product, r_, ravel, real_if_close, reshape, roots, sort, take, transpose, unique, where, zeros, zeros_like
  import numpy
  import math
  from scipy.special import factorial
  from .windows import get_window
  from ._arraytools import axis_slice, axis_reverse, odd_ext, even_ext, const_ext
  from .filter_design import cheby1, _validate_sos
  from .fir_filter_design import firwin
label_desc: Use image node_id 7 for calling a global function with example usage: _numeric_arrays(arrays, kinds) and returns: True, unknown, False