license export enum InteractionTrigger { UNSPECIFIED , CLICK , BACKSPACE_KEY , DELETE_KEY , SPACEBAR_KEY , ENTER_KEY } export const strings = { ARIA_HIDDEN : 'aria-hidden' , INTERACTION_EVENT : 'MDCChipTrailingAction:interaction' , NAVIGATION_EVENT : 'MDCChipTrailingAction:navigation' , TAB_INDEX : 'tabindex' , } ;