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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 opt_separator(self) -> bool: """Parse an optional separator and return ``True`` if found. Raises: EndOfInput: If past the end of input. """

        start = self.offset
        self.dfa([
            {  # state 0: whitespace
                "": lambda: -1,
                " ": lambda: 0,
                "\t": lambda: 0,
                "\n": lambda: 0,
                "\r": lambda: 1,
                "/": lambda: 2
            },
            {  # state 1: CR/LF?
                "": self._back_break,
                "\n": lambda: 0
            },
            {  # state 2: start comment?
                "": self._back_break,
                "/": lambda: 3,
                "*": lambda: 4
            },
            {  # state 3: line comment
                "": lambda: 3,
                "\n": lambda: 0
            },
            {  # state 4: block comment
                "": lambda: 4,
                "*": lambda: 5
            },
            {  # state 5: end block comment?
                "": lambda: 4,
                "/": lambda: 0,
                "*": lambda: 5
            }])
        return start < self.offset