code: def check_sample_meanvar_(distfn, arg, m, v, sm, sv, sn, msg):
      # this did not work, skipped silently by nose
      if np.isfinite(m):
          check_sample_mean(sm, sv, sn, m)
      if np.isfinite(v):
          check_sample_var(sv, sn, v)
  
imports: import numpy
  import numpy.testing
  import pytest
  from pytest import raises
  from scipy.integrate import IntegrationWarning
  from scipy import stats
  from scipy.special import betainc
  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
  from scipy.stats._distr_params import distcont
label_desc: Use image node_id 15 for calling a global function with example usage: check_sample_meanvar_(distfn, arg, m, v, sm, sv, sn, msg) without return types