code: def test_multiple(rg):
      num_samples = 100
      genotype_df = pd.DataFrame(rg.random((num_samples, 10)))
      phenotype_df = pd.DataFrame(rg.random((num_samples, 25)))
      covariate_df = pd.DataFrame(rg.random((num_samples, 5)))
      assert_glow_equals_golden(genotype_df, phenotype_df, covariate_df)
  
imports: import functions
  import numpy
  import statsmodels.api
  import pandas
  import glow.gwas.functions
  import glow.gwas.lin_reg
  import pytest
label_desc: Use image node_id 11 for calling a global function with example usage: test_multiple(rg) without return types