code: def test_float_ok():
      y = np.array([1.0, 2.0])
      reg = BlankRegressor()
      reg._check_target_array(y=y)
  
file_path: mlxtend/mlxtend/_base/tests/test_regressor.py
imports: import numpy
  from mlxtend._base import _BaseModel, _Regressor
  from mlxtend.utils import assert_raises
label_desc: Use image node_id 1 for calling a global function with example usage: test_float_ok() without return types