export function isRemoteIcon(icon?: any): boolean;
export function isDataURI(icon?: any): any;
export function isRelativeUrlPath(icon?: any): boolean;
export function shouldChangeFill({ fillAttr, fillStyle, strokeAttr, strokeStyle }: {
    fillAttr: any;
    fillStyle: any;
    strokeAttr: any;
    strokeStyle: any;
}): boolean;
export function shouldChangeStroke({ fillAttr, fillStyle, strokeAttr, strokeStyle }: {
    fillAttr: any;
    fillStyle: any;
    strokeAttr: any;
    strokeStyle: any;
}): boolean;
export function b64EncodeUnicode(str: any): string;