code: def _pow10m1(x):
      """10 ** x - 1 for x near 0"""
      return cupy.expm1(_POW10_LOG10 * x)
  
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 32 for calling a global function with example usage: _pow10m1(x) and returns: cupy