Return a list of files and directories in a given directory.

        :param directory_path: Optional str (defaults to current directory)
        :param hidden_files: Include hidden files
        :return: Directory listing

def listdir(self, directory_path=None, hidden_files=False):
        """
        Return a list of files and directories in a given directory.

        :param directory_path: Optional str (defaults to current directory)
        :param hidden_files: Include hidden files
        :return: Directory listing
        """
        # Change current directory if a directory path is specified, otherwise use current
        if directory_path:
            self.chdir(directory_path)

        # Exclude hidden files
        if not hidden_files:
            return [path for path in self.session.nlst() if not path.startswith('.')]

        # Include hidden files
        else:
            return self.session.nlst()