code: def latlong_df_pandas():
      latlong_df = pd.DataFrame(
          {
              "tuples": pd.Series([(1, 2), (3, 4)]),
              "string_tuple": pd.Series(["(1, 2)", "(3, 4)"]),
              "bracketless_string_tuple": pd.Series(["1, 2", "3, 4"]),
              "list_strings": pd.Series([["1", "2"], ["3", "4"]]),
              "combo_tuple_types": pd.Series(["[1, 2]", "(3, 4)"]),
          },
      )
      latlong_df.set_index("string_tuple", drop=False, inplace=True)
      latlong_df.index.name = None
      return latlong_df
  
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 39 for calling a global function with example usage: latlong_df_pandas() and returns: latlong_df