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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def compile_suffix_regex(entries):
 """Compile a sequence of suffix rules into a regex object. entries (tuple):
 The suffix rules, e.g. spacy.lang.punctuation.TOKENIZER_SUFFIXES. RETURNS (regex object):
 The regex object. to be used for Tokenizer.suffix_search. """

    expression = "|".join([piece + "$" for piece in entries if piece.strip()])
    return re.compile(expression)