proc loadMeshes[TMesh, TMaterial](path: string; meshAttributesMapping: static
    MeshAttributeNames; materialAttributesMapping: static MaterialAttributeNames;
                                  package = DEFAULT_PACKAGE): GltfData[TMesh,
    TMaterial] {....gcsafe.}

proc ReadglTF[TMesh, TMaterial](stream: Stream; meshAttributesMapping: static
    MeshAttributeNames; materialAttributesMapping: static MaterialAttributeNames): GltfData[
    TMesh, TMaterial]