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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 initialize_options(self):
 """Find all files of all locales."""

        self.paths = []
        self.separators = (',', ':')
        self.data_dir = join(here, 'mimesis', 'data')
        self.before_total = 0
        self.after_total = 0

        for root, _, files in os.walk(self.data_dir):
            for file in sorted(files):
                if splitext(file)[1] == '.json':
                    self.paths.append(join(
                        relpath(root, self.data_dir), file))