Variable UMB_BLOCK_MANAGER_CONTEXT`Const`

UMB_BLOCK_MANAGER_CONTEXT: UmbContextToken<
    UmbBlockManagerContext<
        UmbBlockTypeBaseModel,
        UmbBlockLayoutBaseModel,
        UmbBlockWorkspaceOriginData,
    >,
    UmbBlockManagerContext<
        UmbBlockTypeBaseModel,
        UmbBlockLayoutBaseModel,
        UmbBlockWorkspaceOriginData,
    >,
> = ...