Return a list of files in the repository.

        Args:
            path (str): Path of the top folder (/ by default)
            ref (str): Reference to a commit or branch
            recursive (bool): Whether to get the tree recursively
            all (bool): If True, return all the items, without pagination
            per_page (int): Number of items to retrieve per request
            page (int): ID of the page to return (starts with page 1)
            as_list (bool): If set to False and no pagination option is
                defined, return a generator instead of a list
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabGetError: If the server failed to perform the request

        Returns:
            list: The representation of the tree

def repository_tree(self, path='', ref='', recursive=False, **kwargs):
        """Return a list of files in the repository.

        Args:
            path (str): Path of the top folder (/ by default)
            ref (str): Reference to a commit or branch
            recursive (bool): Whether to get the tree recursively
            all (bool): If True, return all the items, without pagination
            per_page (int): Number of items to retrieve per request
            page (int): ID of the page to return (starts with page 1)
            as_list (bool): If set to False and no pagination option is
                defined, return a generator instead of a list
            **kwargs: Extra options to send to the server (e.g. sudo)

        Raises:
            GitlabAuthenticationError: If authentication is not correct
            GitlabGetError: If the server failed to perform the request

        Returns:
            list: The representation of the tree
        """
        gl_path = '/projects/%s/repository/tree' % self.get_id()
        query_data = {'recursive': recursive}
        if path:
            query_data['path'] = path
        if ref:
            query_data['ref'] = ref
        return self.manager.gitlab.http_list(gl_path, query_data=query_data,
                                             **kwargs)