def _initializer(lats, lons, data):
    """Declare global variables needed for SensorMapGeometryTransformer3D.to_map_geometry and to_sensor_geometry.

    :param lats:
    :param lons:
    :param data:
    """
    global _global_shared_lats, _global_shared_lons, _global_shared_data
    _global_shared_lats = lats
    _global_shared_lons = lons
    _global_shared_data = data
