type CardActionType = 'openUrl' | 'imBack' | 'postBack' | 'playAudio' | 'playVideo' | 'showImage' | 'downloadFile' | 'signin' | 'call' | 'invoke';
type CardAction = {
    /**
     * The type of action implemented by this button. Possible values include: 'openUrl', 'imBack',
     * 'postBack', 'playAudio', 'playVideo', 'showImage', 'downloadFile', 'signin', 'call',
     * messageBack', 'openApp', 'invoke'
     */
    type: CardActionType;
    /**
     * Text description which appears on the button
     */
    title: string;
    /**
     * Image URL which will appear on the button, next to text label
     */
    image?: string;
    /**
     * Text for this action
     */
    text?: string;
    /**
     * (Optional) text to display in the chat feed if the button is clicked
     */
    displayText?: string;
    /**
     * Supplementary parameter for action. Content of this property depends on the ActionType
     */
    value: any;
    /**
     * Channel-specific data associated with this action
     */
    channelData?: any;
    /**
     * Alternate image text to be used in place of the `image` field
     */
    imageAltText?: string;
};

export type { CardAction, CardActionType };