"""
The SUM operator for all retrieval models.
"""

# Copyright (c) 2025, Carnegie Mellon University.  All Rights Reserved.

import sys

from QrySop import QrySop


class QrySopSum(QrySop):
    """
    The SUM  operator for all retrieval models.
    """

    # -------------- Methods (alphabetical) ---------------- #


    def __init__( self ):
        QrySop.__init__( self )		# Inherit from QrySop


    # STUDENTS:
    # Add new methods below. See QrySop.py for guidance about
    # the new methods that you need to define.