CARD_CLICKED interaction events, the types of interactions with dialogs.
To learn more about Google Chat app interaction events, see Receive and respond to interactions with your Google Chat app.
||Default value. Unspecified.|
||A user opens a dialog.|
||A user clicks an interactive element of a dialog. For example, a user fills out information in a dialog and clicks a button to submit the information.|
||A user closes a dialog without submitting information, or the dialog is canceled.|