def __init__(self, dfk, memoize=True, checkpoint={}):
self.dfk = dfk<EOL>self.memoize = memoize<EOL>if self.memoize:<EOL><INDENT>logger.info("<STR_LIT>")<EOL>self.memo_lookup_table = checkpoint<EOL><DEDENT>else:<EOL><INDENT>logger.info("<STR_LIT>")<EOL>self.memo_lookup_table = {}<EOL><DEDENT>
Initialize the memoizer.

        Args:
            - dfk (DFK obj): The DFK object

        KWargs:
            - memoize (Bool): enable memoization or not.
            - checkpoint (Dict): A checkpoint loaded as a dict.