code: def test_boston_housing_float_double_corner_case(self):
      self._train_convert_evaluate_assert(
          {
              "colsample_bytree": 1,
              "colsample_bylevel": 1,
              "scale_pos_weight": 1,
              "learning_rate": 0.1,
              "max_delta_step": 0,
              "min_child_weight": 1,
              "n_estimators": 10,
              "subsample": 0.3,
              "objective": "reg:linear",
              "max_depth": 1,
          }
      )
  
imports: import unittest
  import pandas
  import itertools
  import pytest
  from coremltools._deps import _HAS_SKLEARN, _HAS_XGBOOST
  from coremltools.models.utils import evaluate_regressor, _macos_version, _is_macos
label_desc: Use image node_id 7 for calling the XGboostRegressorBostonHousingNumericTest obj's underlying member method code with example usage: obj.test_boston_housing_float_double_corner_case() without return types