code: def _validate_wp_ws(wp, ws, fs, analog):
      wp = cupy.atleast_1d(wp)
      ws = cupy.atleast_1d(ws)
      if fs is not None:
          if analog:
              raise ValueError(
                  "fs cannot be specified for an analog filter"
              )
          wp = 2 * wp / fs
          ws = 2 * ws / fs
  
      filter_type = 2 * (len(wp) - 1) + 1
      if wp[0] >= ws[0]:
          filter_type += 1
  
      return wp, ws, filter_type
  
imports: import warnings
  import math
  from math import pi, prod
  import cupy
  from cupyx.scipy.special import binom
  import cupyx.scipy.special
  from cupyx.scipy.signal import _optimize
  from cupyx.scipy.signal._polyutils import roots, poly
  from cupyx.scipy.signal._lti_conversion import abcd_normalize
label_desc: Use image node_id 39 for calling a global function with example usage: _validate_wp_ws(wp, ws, fs, analog) and returns: wp,  ws,  filter_type