code: def get_coeffs_strong(self, n_coeffs):
      return 5 * self.get_coeffs_weak(n_coeffs)
  
imports: import unittest
  import numpy
  from scipy.stats import norm
  from tick.prox import ProxSlope
  from tick.prox.tests.prox import TestProx
label_desc: Use image node_id 2 for calling the ProxSlopeTest obj's underlying member method code with example usage: obj.get_coeffs_strong(n_coeffs) and returns: unknown