code: def loc(self):
      return self.base_dist.loc
  
imports: import math
  from math import pi
  import numpy
  import pytest
  import scipy.stats
  import pyro.distributions
  from pyro.distributions.testing.naive_dirichlet import NaiveBeta, NaiveDirichlet
  from pyro.distributions.testing.rejection_exponential import RejectionExponential
  from pyro.distributions.testing.rejection_gamma import ShapeAugmentedBeta, ShapeAugmentedDirichlet, ShapeAugmentedGamma
  from tests.distributions.dist_fixture import Fixture
label_desc: Use image node_id 2 for calling the FoldedNormal obj's underlying member method code with example usage: obj.loc() and returns: self