// gltf
{
    ...
    "nodes": [{
      "mesh": 0,
      "name": "Banana"
    }],
    ...
}

// xml
<xr-gltf id="myGLTF" model="gltfModel" bind:gltf-loaded="handleGLTFLoaded"></xr-gltf>

// ts
function handleGLTFLoaded({ detail }) {
    const el = detail.value.target;
    const gltf = el.getComponent("gltf");
    const newMat = this.scene.assets.getAsset("texture", "...texture name...");
    for (const mesh of gltf.getPrimitivesByNodeName("Banana")) {
        mesh.material.setTexture("u_baseColorMap", newMat);
    }
}
const newMat = this.scene.assets.getAsset("texture", "...texture name...");中的...texture name...是指的什么值？
for (const mesh of gltf.getPrimitivesByNodeName("Banana")) 中的Banana这个值是怎么确定填什么值的？