code: def lon(p: GJPoint) -> float:
      return p[0]
  
imports: import json
  from typing import List, Union, Callable, Any
  import shapely
  from geopandas import GeoDataFrame
  from shapely.geometry import Point
  from lets_plot.geo_data import DF_COLUMN_ID, DF_COLUMN_FOUND_NAME, DF_COLUMN_COUNTY, DF_COLUMN_STATE, DF_COLUMN_COUNTRY
  from lets_plot.geo_data.geocodes import Geocodes
  from lets_plot.geo_data.gis.geometry import Ring, Polygon, Multipolygon
  from lets_plot.geo_data.gis.json_response import ResponseField, GeometryKind
  from lets_plot.geo_data.gis.request import RegionQuery
  from lets_plot.geo_data.gis.response import Answer, GeocodedFeature, FeatureBuilder, LevelKind, Status, GeoRect, GeoPoint, Response, SuccessResponse, AmbiguousResponse, ErrorResponse, ResponseBuilder
label_desc: Use image node_id 28 for calling a global function with example usage: lon(p) and returns: p