docs: public GVRMesh findMesh(GVRSceneObject model)
      {
          class MeshFinder implements GVRSceneObject.ComponentVisitor
          {
              private GVRMesh meshFound = null;
              public GVRMesh getMesh() { return meshFound; }
              public boolean visit(GVRComponent comp)
              {
                  GVRRenderData rdata = (GVRRenderData) comp;
                  meshFound = rdata.getMesh();
                  return (meshFound == null);
              }
          };
          MeshFinder findMesh = new MeshFinder();
          model.forAllComponents(findMesh, GVRRenderData.getComponentType());
          return findMesh.getMesh();
      }