Properties of a ParameterInfo.
Properties:
| Name | Type | Attributes | Description | 
|---|---|---|---|
displayName | 
      
      string | null | 
            
              <optional> | 
        
        
        
           ParameterInfo displayName  | 
    
required | 
      
      boolean | null | 
            
              <optional> | 
        
        
        
           ParameterInfo required  | 
    
state | 
      
      google.cloud.dialogflow.cx.v3beta1.PageInfo.FormInfo.ParameterInfo.ParameterState | null | 
            
              <optional> | 
        
        
        
           ParameterInfo state  | 
    
value | 
      
      google.protobuf.IValue | null | 
            
              <optional> | 
        
        
        
           ParameterInfo value  | 
    
justCollected | 
      
      boolean | null | 
            
              <optional> | 
        
        
        
           ParameterInfo justCollected  |