Bump vertex version to beta01 (#1613)

* Bump vertex version to beta01

* get first function call

---------

Co-authored-by: Rosário P. Fernandes <[email protected]>

Author: rlazo

vertexai/app/build.gradle.kts

@@ -67,7 +67,7 @@ dependencies {
 
     implementation("io.coil-kt:coil-compose:2.5.0")
     implementation("com.google.firebase:firebase-analytics:21.6.1")
-    implementation("com.google.firebase:firebase-vertexai:16.0.0-alpha03")
+    implementation("com.google.firebase:firebase-vertexai:16.0.0-beta01")
 
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")

vertexai/app/src/main/kotlin/com/google/firebase/quickstart/vertexai/feature/functioncalling/FunctionsChatViewModel.kt

@@ -73,15 +73,18 @@ class FunctionsChatViewModel(
                 var response =
                     chat.sendMessage("What would be the uppercase representation of the following text: $userMessage")
 
-                if (response.functionCall != null) {
+                // Getting the first matched function call
+                val firstFunctionCall = response.functionCalls.firstOrNull()
+
+                if (firstFunctionCall != null) {
                     val matchingFunction =
                         generativeModel.tools?.flatMap { it.functionDeclarations }
-                            ?.first { it.name == response.functionCall?.name }
+                            ?.first { it.name == firstFunctionCall.name }
                             ?: throw InvalidStateException(
-                                "Model requested nonexistent function \"${response.functionCall?.name}\" "
+                                "Model requested nonexistent function \"${firstFunctionCall.name}\" "
                             )
 
-                    val funResult = matchingFunction.execute(response.functionCall!!)
+                    val funResult = matchingFunction.execute(firstFunctionCall)
 
                     response = chat.sendMessage(
                         content(role = "function") {