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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 get_what_follows_raw(s: str, prefix: str, onlyatstart: bool = True, stripwhitespace: bool = True) -> Tuple[bool, str]: """ Find the part of ``s`` that is after ``prefix``. Args: s: string to analyse prefix: prefix to find onlyatstart: only accept the prefix if it is right at the start of ``s`` stripwhitespace: remove whitespace from the result Returns: tuple: ``(found, result)`` """

    prefixstart = s.find(prefix)
    if ((prefixstart == 0 and onlyatstart) or
            (prefixstart != -1 and not onlyatstart)):
        # substring found
        resultstart = prefixstart + len(prefix)
        result = s[resultstart:]
        if stripwhitespace:
            result = result.strip()
        return True, result
    return False, ""