code: def get_geo_coordinates(tweet):
      
      if "geo" in tweet:
          if tweet["geo"] is not None:
              if "coordinates" in tweet["geo"]:
                  [lat, lon] = tweet["geo"]["coordinates"]
                  return {"latitude": lat, "longitude": lon}
      return None
docs: Get the user's geo coordinates, if they are included in the payload
      (otherwise return None)
  
      Args:
          tweet (Tweet or dict): A Tweet object or dictionary
  
      Returns:
          dict: dictionary with the keys "latitude" and "longitude"
                or, if unavaiable, None
  
      Example:
          >>> from tweet_parser.getter_methods.tweet_geo import get_geo_coordinates
          >>> tweet_geo = {"geo": {"coordinates": [1,-1]}}
          >>> get_geo_coordinates(tweet_geo)
          {'latitude': 1, 'longitude': -1}
  
          >>> tweet_no_geo = {"geo": {}}
          >>> get_geo_coordinates(tweet_no_geo) #returns None