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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 compress(self, input_path):
 """ Compress the contents of the given directory. :param string input_path: path of the input directory :raises: TypeError: if the container path has not been set :raises: ValueError: if ``input_path`` is not an existing directory :raises: OSError: if an error occurred compressing the given container (e.g., empty file, damaged file, etc.) """

        self.log([u"Compressing '%s' into this container", input_path])

        if self.file_path is None:
            self.log_exc(u"The container path has not been set", None, True, TypeError)
        if self.actual_container is None:
            self.log_exc(u"The actual container object has not been set", None, True, TypeError)
        if not gf.directory_exists(input_path):
            self.log_exc(u"The input path is not an existing directory", None, True, ValueError)
        gf.ensure_parent_directory(input_path)
        self.actual_container.compress(input_path)