import { SKUAttributes } from '../types';
export declare function hasTargetDefindex(attributes: SKUAttributes): attributes is {
    targetDefindex: number;
    defindex: number;
    quality: number;
    craftable: boolean;
};
export declare function hasOutputDefindex(attributes: SKUAttributes): attributes is {
    outputDefindex: number;
    outputQuality: number;
    defindex: number;
    quality: number;
    craftable: boolean;
};
export declare function hasOutputQuality(attributes: SKUAttributes): attributes is {
    outputQuality: number;
    defindex: number;
    quality: number;
    craftable: boolean;
};
export declare function hasTexture(attributes: {
    texture?: string | number | undefined;
}): attributes is {
    texture: number;
};