code: def adjust_precision(tau, scaling_bound=1e-8):
      mag = sqrt(abs(tau))
  
      bounded = bound(
          log(mag), log(scaling_bound), log(1.0 / scaling_bound)
      )
      return exp(bounded) ** 2
  
file_path: pymc/pymc/tuning/scaling.py
imports: import numpy
  from numpy import exp, log, sqrt
  from pymc.blocking import DictToArrayBijection
  from pymc.model import Point, modelcontext
  from pymc.pytensorf import hessian_diag
  from pymc.util import get_var_name
label_desc: Use image node_id 6 for calling a global function with example usage: adjust_precision(tau, scaling_bound) and returns: unknown