def set_format_key_value(self, key, value):
if self.format_keys is None:<EOL><INDENT>self.format_keys = []<EOL>self.FORMAT = {}<EOL><DEDENT>if key not in self.FORMAT:<EOL><INDENT>self.format_keys.append(key)<EOL><DEDENT>self.FORMAT[key] = value<EOL>
Add a new key/value pair. Key in column 9 (FORMAT)
        and value in column 10. If key already exists, then updates
        the value to the new given value