export declare class AttributeMap {
    protected attributeMap: {
        [key: string]: GLAttribute;
    };
    constructor();
    add(key: string, attribute: GLAttribute): void;
    remove(key: string): void;
    hasAttribute(key: string): boolean;
    getAttribute(key: string): GLAttribute;
}
export declare class GLAttribute {
    protected gl: WebGL2RenderingContext;
    type: string;
    size: number;
    location: number;
    constructor(gl: WebGL2RenderingContext, type: string, size: number, location: number);
    pointer(type: number, normalized: boolean, stride: number, start: number): void;
}
export declare function extract(gl: WebGL2RenderingContext, program: WebGLProgram): AttributeMap;