code: def _ellipdeg(n, m1):
      """Solve degree equation using nomes
  
      Given n, m1, solve
         n * K(m) / K'(m) = K1(m1) / K1'(m1)
      for m
  
      See [1], Eq. (49)
  
      References
      ----------
      .. [1] Orfanidis, "Lecture Notes on Elliptic Filter Design",
             https://www.ece.rutgers.edu/~orfanidi/ece521/notes.pdf
      """
      # number of terms in solving degree equation
      _ELLIPDEG_MMAX = 7
  
      K1 = special.ellipk(m1)
      K1p = special.ellipkm1(m1)
  
      q1 = cupy.exp(-pi * K1p / K1)
      q = q1 ** (1 / n)
  
      mnum = cupy.arange(_ELLIPDEG_MMAX + 1)
      mden = cupy.arange(1, _ELLIPDEG_MMAX + 2)
  
      num = (q ** (mnum * (mnum + 1))).sum()
      den = 1 + 2 * (q ** (mden**2)).sum()
  
      return 16 * q * (num / den) ** 4
  
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 33 for calling a global function with example usage: _ellipdeg(n, m1) and returns: unknown