code: def set_bracket(self, brack=None):
      self.brack = brack
  
imports: import numpy
  from numpy import atleast_1d, eye, mgrid, argmin, zeros, shape, empty, squeeze, isscalar, vectorize, asarray, absolute, sqrt, Inf, asfarray, isinf
  from mystic import linesearch
  from collections.abc import Callable
  import builtins
label_desc: Use image node_id 2 for calling the Brent obj's underlying member method code with example usage: obj.set_bracket(brack) without return types