function dwithin(geometryName, geometry, distance, unit, srsName) {
  return new DWithin(geometryName, geometry, distance, unit, srsName);
}
Create a `<DWithin>` operator to test whether a geometry-valued property
is within a distance to a given geometry.

@param {!string} geometryName Geometry name to use.
@param {!import("../geom/Geometry.js").default} geometry Geometry.
@param {!number} distance Distance.
@param {!string} unit Unit.
@param {string} [srsName] SRS name. No srsName attribute will be
   set on geometries when this is not provided.
@return {!DWithin} `<DWithin>` operator.
@api