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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 _timeout_to_float(self, timeout):
 """Convert timeout to float. Return None if timeout is None, 0 or 0.0. timeout=None disables timeouts in Requests. """

        if timeout is not None:
            try:
                timeout_float = float(timeout)
            except ValueError:
                raise ValueError(
                    'timeout_sec must be a valid number or None. timeout="{}"'.format(
                        timeout
                    )
                )
            if timeout_float:
                return timeout_float