class RefreshToken { String refreshToken = ""; String accessToken = ""; RefreshToken({ this.refreshToken = "", this.accessToken = "", }); Map toMap() { return { 'refreshToken': refreshToken, 'accessToken': accessToken, }; } factory RefreshToken.fromMap(Map map) { return RefreshToken( refreshToken: map['refreshToken'], accessToken: map['accessToken'], ); } @override String toString() { return 'RefreshToken{refreshToken: $refreshToken, accessToken: $accessToken}'; } }