QuantizerCelebi constructor Null safety

1. Flutter
2. quantizer_celebi
3. QuantizerCelebi
4. QuantizerCelebi constructor

QuantizerCelebi class

1. Constructors
2. QuantizerCelebi
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. quantize
9. toString
10. Operators
11. operator ==