Contoh Python Re.sub
result = re.sub('abc', '', input) # Delete pattern abc
result = re.sub('abc', 'def', input) # Replace pattern abc -> def
result = re.sub(r'\s+', ' ', input) # Eliminate duplicate whitespaces using wildcards
result = re.sub('abc(def)ghi', r'\1', input) # Replace a string with a part of itself
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