AI-generated Key Takeaways
- 
          UniversalActionResponseBuilder is used to build UniversalActionResponse objects. 
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          The build()method validates and creates the UniversalActionResponse.
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          The displayAddOnCards()method allows you to show the add-on with specified cards.
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          The setOpenLink()method sets the URL that opens when a universal action is chosen.
A builder for the Universal objects.
Methods
| Method | Return type | Brief description | 
|---|---|---|
| build() | Universal | Builds the current universal action response and validates it. | 
| display | Universal | Displays the add-on with the specified cards. | 
| set | Universal | Sets the URL to open when the universal action is selected. | 
Detailed documentation
build()
Builds the current universal action response and validates it.
Return
Universal — A validated UniversalActionResponse.
Throws
Error — if the constructed universal action response isn't valid.
displayAddOnCards(cardObjects)   
Displays the add-on with the specified cards.
Parameters
| Name | Type | Description | 
|---|---|---|
| card | Object[] | An array of Cards to display. | 
Return
Universal — This object, for chaining.
setOpenLink(openLink)  
Sets the URL to open when the universal action is selected.
Parameters
| Name | Type | Description | 
|---|---|---|
| open | Open | The link object to use. | 
Return
Universal — This object, for chaining.