code: def constructor(request):
      """Fixture returning parametrized IntegerArray from given sequence.
  
      Used to test dtype conversions.
      """
      return request.param
  
imports: import numpy
  import pytest
  import pandas
  import pandas._testing
  from pandas.api.types import is_integer
  from pandas.core.arrays import IntegerArray
  from pandas.core.arrays.integer import Int8Dtype, Int32Dtype, Int64Dtype
label_desc: Use image node_id 1 for calling a global function with example usage: constructor(request) and returns: request