Applying different Animations to a model

[ozair-qayam]

I have two .glb file,then parse them to two Renderables(A,B),

the Renderables A use to ModelViewer.
the Renderables B parse one animations.
what should i do to use B's aimations in A ModelViewer?

I try to use B‘s animator applyAnimation() , the animtion stop and cant play B's animation