fix: Steps is not optional

PiperOrigin-RevId: 914062002

Author: MarkDaoust

sdk-samples/interactions_function_calling_client_state.ts

@@ -63,11 +63,9 @@ async function createInteractionsFromMLDev() {
   });
 
   // add model response back to history
-  if (response.steps) {
-    fcConversationHistory.push(...response.steps);
-  }
+  fcConversationHistory.push(...response.steps);
 
-  for (const step of response.steps ?? []) {
+  for (const step of response.steps) {
     if (step.type == 'function_call') {
       console.log(
         `Function call: ${step.name} with arguments ${JSON.stringify(

sdk-samples/interactions_function_calling_server_state.ts

@@ -51,7 +51,7 @@ async function createInteractionsFromMLDev() {
     ],
   });
 
-  for (const step of response.steps ?? []) {
+  for (const step of response.steps) {
     if (step.type == 'function_call') {
       console.log(
         `Function call: ${step.name} with arguments ${JSON.stringify(

sdk-samples/interactions_multimodal_response_audio.ts

@@ -21,7 +21,7 @@ async function createInteractionsFromMLDev() {
     },
   });
 
-  interaction.steps?.forEach((step, index) => {
+  interaction.steps.forEach((step, index) => {
     if (step.type === 'model_output') {
       step.content?.forEach((content) => {
         if (content.type === 'audio') {

sdk-samples/interactions_multimodal_response_audio_with_generate_content.ts

@@ -23,7 +23,7 @@ async function createInteractionsFromMLDev() {
     },
   });
 
-  interaction.steps?.forEach((step, index) => {
+  interaction.steps.forEach((step, index) => {
     if (step.type === 'model_output') {
       step.content?.forEach((content) => {
         if (content.type === 'audio') {

sdk-samples/interactions_multimodal_response_image.ts

@@ -18,7 +18,7 @@ async function createInteractionsFromMLDev() {
     input: 'Generate an image of a futuristic cityscape at sunset.',
   });
 
-  interaction.steps?.forEach((step, index) => {
+  interaction.steps.forEach((step, index) => {
     if (step.type === 'model_output') {
       step.content?.forEach((content) => {
         if (content.type === 'image') {

sdk-samples/interactions_multimodal_response_image_with_generate_content.ts

@@ -20,7 +20,7 @@ async function createInteractionsFromMLDev() {
     input: 'Generate an image of a futuristic cityscape at sunset.',
   });
 
-  interaction.steps?.forEach((step, index) => {
+  interaction.steps.forEach((step, index) => {
     if (step.type === 'model_output') {
       step.content?.forEach((content) => {
         if (content.type === 'image') {

sdk-samples/interactions_stateless.ts

@@ -33,9 +33,7 @@ async function createInteractionsFromMLDev() {
   });
   console.log('Model: ', response1);
 
-  if (response1.steps) {
-    conversationHistory.push(...response1.steps);
-  }
+  conversationHistory.push(...response1.steps);
 
   conversationHistory.push({
     type: 'user_input',

sdk-samples/package-lock.json

@@ -1035,6 +1035,11 @@ export interface Interaction {
    */
   status: 'in_progress' | 'requires_action' | 'completed' | 'failed' | 'cancelled' | 'incomplete';
 
+  /**
+   * Required. Output only. The steps that make up the interaction.
+   */
+  steps: Array<Step>;
+
   /**
    * Required. Output only. The time at which the response was last updated in ISO
    * 8601 format (YYYY-MM-DDThh:mm:ssZ).
@@ -1110,11 +1115,6 @@ export interface Interaction {
    */
   service_tier?: 'flex' | 'standard' | 'priority';
 
-  /**
-   * Output only. The steps that make up the interaction.
-   */
-  steps?: Array<Step>;
-
   /**
    * System instruction for the interaction.
    */