class_docstr: Returns the first tuple value in a list of LatLong tuples.
     For use with the LatLong logical type.
  
  Examples:
      >>> latitude = Latitude()
      >>> latitude([(42.4, -71.1),
      ...            (40.0, -122.4),
      ...            (41.2, -96.75)]).tolist()
      [42.4, 40.0, 41.2]
code: def get_function(self):
      def latitude(latlong):
          latlong = np.array(latlong.tolist())
          return latlong[:, 0]
  
      return latitude
  
imports: import numpy
  from woodwork.column_schema import ColumnSchema
  from woodwork.logical_types import LatLong
  from featuretools.primitives.base import TransformPrimitive
label_desc: Use image node_id 1 for calling the Latitude obj's underlying member method code with example usage: obj.get_function() and returns: latitude, latlong