AI-generated Key Takeaways
- 
          ChatClientDataSource is a data source for a multiselect menu in a SelectionInput widget, specifically for Google Chat. 
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          It populates selection items, for example, Google Chat spaces the user is a member of. 
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          This feature is exclusively available for Google Chat apps and not for Google Workspace add-ons. 
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          The setSpaceDataSource method populates Google Chat spaces as selection items for a multiselect menu. 
For a Selection widget that uses a multiselect menu, a data source from Google Chat.
The data source populates selection items for the multiselect menu. For example, a user can
select Google Chat spaces that they're a member of.
const chatSpaceDataSource = CardService.newChatSpaceDataSource().setDefaultToCurrentSpace(true); const chatClientDataSource = CardService.newChatClientDataSource().setSpaceDataSource( chatSpaceDataSource);
Only available for Google Chat apps. Not available for Google Workspace add-ons.
Methods
| Method | Return type | Brief description | 
|---|---|---|
| set | Chat | A data source that populates Google Chat spaces as selection items for a multiselect menu. | 
Detailed documentation
setSpaceDataSource(spaceDataSource)   
A data source that populates Google Chat spaces as selection items for a multiselect menu. Only populates spaces that the user is a member of.
const chatSpaceDataSource = CardService.newChatSpaceDataSource().setDefaultToCurrentSpace(true); const chatClientDataSource = CardService.newChatClientDataSource().setSpaceDataSource( chatSpaceDataSource);
Parameters
| Name | Type | Description | 
|---|---|---|
| space | Chat | The data source to be set. | 
Return
Chat — This object, for chaining.