code: def test_build_basic():
      program_code = "parameters {real y;} model {y ~ normal(0,1);}"
      posterior = stan.build(program_code)
      assert posterior.model_name is not None
      assert posterior.data == {}
      assert posterior.param_names == ("y",)
  
imports: import pytest
  import stan
label_desc: Use image node_id 1 for calling a global function with example usage: test_build_basic() without return types