Functional builder

SomeModel.java

import java.util.Optional;
import java.util.function.Consumer;
import java.util.stream.Stream;

public class SomeModel {
  public interface SomeModelOption extends Consumer<SomeModel> {}

  private String modelName;
  private Float temperature;
  private Integer maxOutputTokens;

  public SomeModel(SomeModelOption... options) {
   Optional.ofNullable(options)
    .map(Stream::of)
    .orElseGet(Stream::empty)
    .forEach(option -> option.accept(this));
  }

  public static SomeModelOption modelName(String modelName) {
   return model -> model.modelName = modelName;
  }

  public static SomeModelOption temperature(Float temperature) {
   return model -> model.temperature = temperature;
  }

  public static SomeModelOption maxOutputTokens(Integer maxOutputTokens) {
   return model -> model.maxOutputTokens = maxOutputTokens;
  }
}