code: def time_solve_triangular(self, size, contig, module):
      # treats self.a as a lower-triangular matrix by ignoring the strictly
      # upper-triangular part
      if module == "numpy":
          pass
      else:
          sl.solve_triangular(self.a, self.b, lower=True)
  
imports: import math
  import numpy.linalg
  import numpy
  from numpy.testing import assert_
  from numpy.random import rand
  from .common import Benchmark, safe_import
label_desc: Use image node_id 4 for calling the Bench obj's underlying member method code with example usage: obj.time_solve_triangular(size, contig, module) without return types