code: def time_firls(self, n, edges):
      signal.firls(n, (0,) + edges + (1,), [1, 1, 0, 0])
  
imports: from itertools import product
  import numpy
  from .common import Benchmark, safe_import
label_desc: Use image node_id 1 for calling the FIRLS obj's underlying member method code with example usage: obj.time_firls(n, edges) without return types