code: def getDetectorClassConstructors(detectors):
    
    detectorConstructors = {
    d : globals()[detectorNameToClass(d)] for d in detectors}
  
    return detectorConstructors
docs: Takes in names of detectors. Collects class names that correspond to those
    detectors and returns them in a dict. The dict maps detector name to class
    names. Assumes the detectors have been imported.