code: def test_alias_equal_to_name(my_data):
      model = bmb.Model("y ~ 1 + x", my_data)
      model.set_alias({"sigma": "sigma"})
      idata = model.fit(tune=100, draws=100)
      set(idata.posterior.data_vars) == {
          "Intercept",
          "y_mean",
          "x",
          "sigma",
      }
  
file_path: bambi/tests/test_aliases.py
imports: import pytest
  import bambi
  import numpy
  import pandas
label_desc: Use image node_id 7 for calling a global function with example usage: test_alias_equal_to_name(my_data) without return types