/// Called by <see cref="LabelManager"/> when a <see cref="Labeling"/> component is first registered, created at runtime, or enabled at runtime.
/// Enables ground truth generation for a <see cref="Labeling"/> component or its associated <see cref="MaterialPropertyBlock"/>. This function is called by <see cref="LabelManager"/> when a <see cref="Labeling"/> component is registered, created, or enabled.
/// <param name="mpb">The MaterialPropertyBlock for the given <see cref="MeshRenderer"/>. Can be used to set properties for custom rendering.</param>
/// <param name="mpb">The <see cref="MaterialPropertyBlock"/> for the given <see cref="MeshRenderer"/>. Can be used to set properties for custom rendering.</param>
/// <param name="renderer">The <see cref="Renderer"/> under the given <see cref="LabelManager"/>.</param>
/// <param name="labeling">The <see cref="LabelManager"/> component that was registered, created, or enabled</param>
/// <param name="instanceId">The instanceId assigned to the given <see cref="LabelManager"/> instance.</param>
/// Called by <see cref="LabelManager"/> when a <see cref="Labeling"/> component is disabled, causing it to not be included in ground-truth generation.
/// Disables ground truth generation for a <see cref="Labeling"/> component or its associated <see cref="MaterialPropertyBlock"/>. This function is called by <see cref="LabelManager"/> when a <see cref="Labeling"/> component is disabled.
/// <param name="mpb">The MaterialPropertyBlock for the given <see cref="MeshRenderer"/>. Can be used to set properties for custom rendering.</param>
/// <param name="mpb">The <see cref="MaterialPropertyBlock"/> for the given <see cref="MeshRenderer"/>. Can be used to set properties for custom rendering.</param>
/// <param name="renderer">The <see cref="Renderer"/> under the given <see cref="LabelManager"/>.</param>
/// <param name="labeling">The <see cref="LabelManager"/> component for which ground-truth generation should stop.</param>
/// <param name="instanceId">The instanceId assigned to the given <see cref="LabelManager"/> instance.</param>