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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 _path_formatter(self, suffix):
 """Format the s3 path properly. Args: suffix (str):
 suffix to add on to an s3 path Returns: str: formatted path """

        if suffix.lower() == "mirror":
            path_items = [self.bucket, self.s3path]
        else:
            path_items = [self.bucket, self.s3path, suffix]

        path = '/'.join(path_items)
        s3_format = "s3://{}"
        formatted_path = path.replace('//', '/')  # removes configuration errors
        full_path = s3_format.format(formatted_path)
        return full_path