code: def df():
      return GeoDataFrame(
          {
              "geometry": [Point(x, x) for x in range(3)],
              "value1": np.arange(3, dtype="int64"),
              "value2": np.array([1, 2, 1], dtype="int64"),
          }
      )
  
imports: import os
  from packaging.version import Version
  import warnings
  import numpy
  from numpy.testing import assert_array_equal
  import pandas
  import shapely
  from shapely.geometry import Point, GeometryCollection, LineString, LinearRing
  import geopandas
  from geopandas import GeoDataFrame, GeoSeries
  import geopandas._compat
  from geopandas.array import from_shapely
  from geopandas.testing import assert_geodataframe_equal, assert_geoseries_equal
  from pandas.testing import assert_frame_equal, assert_series_equal
  import pytest
label_desc: Use image node_id 2 for calling a global function with example usage: df() and returns: GeoDataFrame