Represents the query input. It can contain either:
An audio config which instructs the speech recognizer how to process the speech audio.
A conversational query in the form of text.
An event that specifies which intent to trigger.
| JSON representation | 
|---|
{ // Union field  | 
            
| Fields | |
|---|---|
Union field input. Required. The input specification. input can be only one of the following: | 
            |
audioConfig | 
              
                 
 Instructs the speech recognizer how to process the speech audio.  | 
            
text | 
              
                 
 The natural language text to be processed. Text length must not exceed 256 character for virtual agent interactions.  | 
            
event | 
              
                 
 The event to be processed.  |