How to use the pydriller.domain.commit.ModificationType function in PyDriller

mod.change_type == ModificationType.DELETE:
                path = mod.old_path
            deleted_lines = self.parse_diff(mod.diff)['deleted']
            try:
                blame = self._get_blame(commit.hash, path,
                                        hashes_to_ignore_path)
                for num_line, line in deleted_lines:
                    if not self._useless_line(line.strip()):
                        buggy_commit = blame[num_line - 1].split(' ')[
                            0].replace('^', '')

                        # Skip unblamable lines.
                        if buggy_commit.startswith("*"):
                            continue

                        if mod.change_type == ModificationType.RENAME:
                            path = mod.new_path

                        commits.setdefault(path, set()).add(
                            self.get_commit(buggy_commit).hash)
            except GitCommandError:
                logger.debug(
                    "Could not found file %s in commit %s. Probably a double "
                    "rename!", mod.filename, commit.hash)

        return commits

:return: int number of commits made to the file
        """

        filepath = str(Path(filepath))
        count = 0

        for commit in RepositoryMining(path_to_repo, from_commit=from_commit,
                                       to_commit=to_commit,
                                       reversed_order=True).traverse_commits():
            for modified_file in commit.modifications:
                if filepath in (modified_file.new_path,
                                modified_file.old_path):
                    count += 1

                    if modified_file.change_type == ModificationType.RENAME:
                        filepath = str(Path(modified_file.old_path))

                    break
        return count