code: def read_postgis(*args, **kwargs):
      import warnings
  
      warnings.warn(
          "geopandas.io.sql.read_postgis() is intended for internal "
          "use only, and will be deprecated. Use geopandas.read_postgis() instead.",
          FutureWarning,
          stacklevel=2,
      )
  
      return _read_postgis(*args, **kwargs)
  
file_path: geopandas/geopandas/io/sql.py
imports: import warnings
  from contextlib import contextmanager
  import pandas
  import shapely
  import shapely.wkb
  from geopandas import GeoDataFrame
label_desc: Use image node_id 4 for calling a global function with example usage: read_postgis() and returns: _read_postgis