Add missing declarations after main merge

Author: rlazo

firebase-vertexai/src/main/kotlin/com/google/firebase/vertexai/type/Part.kt

@@ -49,23 +49,22 @@ public class InlineDataPart(public val mimeType: String, public val inlineData:
  *
  * @param functionCall The information provided by the model to call a function.
  */
-class FunctionCallPart(public val functionCall: FunctionCall) : Part
+public class FunctionCallPart(public val functionCall: FunctionCall) : Part
 
 /**
  * The result of calling a function as requested by the model.
  *
  * @param functionResponse The information to send back to the model as the result of a functions
  * call.
  */
-class FunctionResponsePart(public val functionResponse: FunctionResponse) : Part
+public class FunctionResponsePart(public val functionResponse: FunctionResponse) : Part
 
 /**
  * The data necessary to invoke function [name] using the arguments [args].
  *
  * @param name the name of the function to call
  * @param args the function parameters and values as a [Map]
  */
-
 public class FunctionCall(public val name: String, public val args: Map<String, JsonElement>)
 
 /**