docs: added an explicit note that DetectIntentRequest's text input is limited by 256 characters

Google APIs · copybara-github · commit eeacaabc368d · 2022-07-25T22:12:57.000-07:00
PiperOrigin-RevId: 463252698
diff --git a/google/cloud/dialogflow/v2/session.proto b/google/cloud/dialogflow/v2/session.proto
@@ -256,7 +256,8 @@ message QueryInput {
     // Instructs the speech recognizer how to process the speech audio.
     InputAudioConfig audio_config = 1;
 
-    // The natural language text to be processed.
+    // The natural language text to be processed. Text length must not exceed
+    // 256 character for virtual agent interactions.
     TextInput text = 2;
 
     // The event to be processed.
@@ -615,7 +616,7 @@ message StreamingRecognitionResult {
 // Represents the natural language text to be processed.
 message TextInput {
   // Required. The UTF-8 encoded natural language text to be processed.
-  // Text length must not exceed 256 characters.
+  // Text length must not exceed 256 characters for virtual agent interactions.
   string text = 1 [(google.api.field_behavior) = REQUIRED];
 
   // Required. The language of this conversational query. See [Language
