class_docstr: Determines the geographic center of two coordinates.
  
  Examples:
      >>> geomidpoint = GeoMidpoint()
      >>> geomidpoint([(42.4, -71.1)], [(40.0, -122.4)])
      [(41.2, -96.75)]
code: def get_function(self):
      def geomidpoint_func(latlong_1, latlong_2):
          latlong_1 = np.array(latlong_1.tolist())
          latlong_2 = np.array(latlong_2.tolist())
          lat_1s = latlong_1[:, 0]
          lat_2s = latlong_2[:, 0]
          lon_1s = latlong_1[:, 1]
          lon_2s = latlong_2[:, 1]
  
          lat_middle = (
              np.array([lat_1s, lat_2s]).transpose().mean(axis=1)
          )
          lon_middle = (
              np.array([lon_1s, lon_2s]).transpose().mean(axis=1)
          )
          return list(zip(lat_middle, lon_middle))
  
      return geomidpoint_func
  
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 GeoMidpoint obj's underlying member method code with example usage: obj.get_function() and returns: geomidpoint_func, list