code: def test_burr_fisk_moment_gh13234_regression():
      vals0 = stats.burr.moment(1, 5, 4)
      assert isinstance(vals0, float)
  
      vals1 = stats.fisk.moment(1, 8)
      assert isinstance(vals1, float)
  
imports: import sys
  import numpy
  import numpy.testing
  import pytest
  from pytest import raises
  from scipy.integrate import IntegrationWarning
  import itertools
  from scipy import stats
  from .common_tests import check_normalization, check_moment, check_mean_expect, check_var_expect, check_skew_expect, check_kurt_expect, check_entropy, check_private_entropy, check_entropy_vect_scale, check_edge_support, check_named_args, check_random_state_property, check_meth_dtype, check_ppf_dtype, check_cmplx_deriv, check_pickling, check_rvs_broadcast, check_freezing, check_munp_expect
  from scipy.stats._distr_params import distcont
  from scipy.stats._distn_infrastructure import rv_continuous_frozen
label_desc: Use image node_id 37 for calling a global function with example usage: test_burr_fisk_moment_gh13234_regression() without return types