docstr: Test selecting all flattened keys of a parameter
docstr_tok: ["Test","selecting","all","flattened","keys","of","a","parameter"]
code: def test_top_params(self, hspace):
      """Test selecting all flattened keys of a parameter"""
      params = ["x", "y[0,2]", "y[1,1]", "z"]
      assert (
          flatten_params(hspace, params)
          == [f"x[{i}]" for i in range(3)] + params[1:]
      )
  
imports: import numpy
  import pandas
  import pytest
  from sklearn.ensemble import AdaBoostRegressor, BaggingRegressor, ExtraTreesRegressor, GradientBoostingRegressor, RandomForestRegressor
  from orion.analysis.base import average, flatten_numpy, flatten_params, ranking, to_numpy, train_regressor
  from orion.core.io.space_builder import SpaceBuilder
  from orion.core.worker.transformer import build_required_space
label_desc: Use image node_id 7 for calling the TestFlattenParams obj's underlying member method code with example usage: obj.test_top_params(hspace) without return types