save method Null safety
- MetadataKey key,
- String value
Implementation
void save(MetadataKey key, String value) => _db.execute('''
INSERT INTO $table
VALUES ('${key.value}', '$value');
''');
void save(MetadataKey key, String value) => _db.execute('''
INSERT INTO $table
VALUES ('${key.value}', '$value');
''');