code: def pd_df():
      return pd.DataFrame(
          {"id": [0, 1, 2], "category": ["a", "b", "c"]}
      ).astype(
          {"category": "category"},
      )
  
imports: from datetime import datetime
  import numpy
  import pandas
  import pytest
  from woodwork.exceptions import TypeConversionError
  from woodwork.logical_types import Boolean, Categorical, Datetime, Double, Integer, NaturalLanguage
  from featuretools.entityset.entityset import LTI_COLUMN_NAME, EntitySet
  from featuretools.tests.testing_utils import to_pandas
  from featuretools.utils.gen_utils import Library, import_or_none, is_instance
label_desc: Use image node_id 2 for calling a global function with example usage: pd_df() and returns: pd