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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 regxy(pattern, response, supress_regex, custom):
 """Extract a string based on regex pattern supplied by user."""

    try:
        matches = re.findall(r'%s' % pattern, response)
        for match in matches:
            verb('Custom regex', match)
            custom.add(match)
    except:
        supress_regex = True