Class PlatformDataSource

const platformDataSource =
    CardService.newPlatformDataSource().setCommonDataSource(
        CardService.CommonDataSource.USER,
    );

const multiSelect = CardService.newSelectionInput()
                        .setType(CardService.SelectionInputType.MULTI_SELECT)
                        .setFieldName('contacts')
                        .setTitle('Selected contacts')
                        .setMultiSelectMaxSelectedItems(5)
                        .setMultiSelectMinQueryLength(1)
                        .setPlatformDataSource(platformDataSource);

const chatSpaceDataSource =
    CardService.newChatSpaceDataSource().setDefaultToCurrentSpace(true);

const chatClientDataSource =
    CardService.newChatClientDataSource().setSpaceDataSource(
        chatSpaceDataSource);

const hostAppDataSource =
    CardService.newHostAppDataSource().setChatDataSource(chatClientDataSource);

const platformDataSource =
    CardService.newPlatformDataSource().setHostAppDataSource(hostAppDataSource);

const multiSelect = CardService.newSelectionInput()
                        .setType(CardService.SelectionInputType.MULTI_SELECT)
                        .setFieldName('contacts')
                        .setTitle('Selected contacts')
                        .setMultiSelectMaxSelectedItems(5)
                        .setMultiSelectMinQueryLength(1)
                        .setPlatformDataSource(platformDataSource);