https://slack.com/api/files.info

def info(self, file, **kwargs):
        """ https://slack.com/api/files.info
        """
        self.params.update({
            'file': file,
            })
        if kwargs:
            self.params.update(kwargs)
        return FromUrl('https://slack.com/api/files.info', self._requests)(data=self.params).get()