internal constructor; update CHANGELOG

Author: thatfiredev

firebase-ai/CHANGELOG.md

@@ -1,5 +1,6 @@
 # Unreleased
-* [feat] Added support for setting thinking budget for the Gemini models that support it. (#6990)
+* [feature] Added support for configuring the "thinking" budget when using Gemini
+  2.5 series models. (#6990)
 
 # 16.2.0
 * [changed] Deprecate the `totalBillableCharacters` field (only usable with pre-2.0 models). (#7042)

firebase-ai/api.txt

@@ -936,15 +936,12 @@ package com.google.firebase.ai.type {
   }
 
   public final class ThinkingConfig {
-    ctor public ThinkingConfig(Integer? thinkingBudget);
-    method public Integer? getThinkingBudget();
-    property public final Integer? thinkingBudget;
   }
 
   public static final class ThinkingConfig.Builder {
     ctor public ThinkingConfig.Builder();
     method public com.google.firebase.ai.type.ThinkingConfig build();
-    method public com.google.firebase.ai.type.ThinkingConfig.Builder setThinkingBudget(Integer? thinkingBudget);
+    method public com.google.firebase.ai.type.ThinkingConfig.Builder setThinkingBudget(int thinkingBudget);
     field public Integer? thinkingBudget;
   }
 

firebase-ai/src/main/kotlin/com/google/firebase/ai/type/ThinkingConfig.kt

@@ -20,13 +20,21 @@ import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
 
 /** Configuration parameters for thinking features. */
-public class ThinkingConfig(public val thinkingBudget: Int?) {
+public class ThinkingConfig
+private constructor(
+  internal val thinkingBudget: Int? = null,
+) {
 
   public class Builder() {
-    @JvmField public var thinkingBudget: Int? = null
+    @JvmField
+    @set:JvmSynthetic // hide void setter from Java
+    public var thinkingBudget: Int? = null
 
-    /** The number of thoughts tokens that the model should generate. */
-    public fun setThinkingBudget(thinkingBudget: Int?): Builder = apply {
+    /**
+     * Indicates the thinking budget in tokens. 0 is DISABLED. -1 is AUTOMATIC. The default values
+     * and allowed ranges are model dependent.
+     */
+    public fun setThinkingBudget(thinkingBudget: Int): Builder = apply {
       this.thinkingBudget = thinkingBudget
     }