code: def test_constructor_coerce(self, mixed_index, float_index):
      self.check_coerce(mixed_index, Index([1.5, 2, 3, 4, 5]))
      self.check_coerce(float_index, Index(np.arange(5) * 2.5))
  
      result = Index(np.array(np.arange(5) * 2.5, dtype=object))
      assert result.dtype == object  # as of 2.0 to match Series
      self.check_coerce(float_index, result.astype("float64"))
  
imports: import numpy
  import pytest
  import pandas
  from pandas import Index, Series
  import pandas._testing
label_desc: Use image node_id 9 for calling the TestFloatNumericIndex obj's underlying member method code with example usage: obj.test_constructor_coerce(mixed_index, float_index) without return types