Fix wraps h to make it compatible with `container/heap` then call `container/heap`.Fix with it.

Init wraps h to make it compatible with `container/heap` then call `container/heap`.Init with it.

Pop wraps h to make it compatible with `container/heap` then call `container/heap`.Pop with it.

Push wraps h to make it compatible with `container/heap` then call `container/heap`.Push with it.

Remove wraps h to make it compatible with `container/heap` then call `container/heap`.Remove with it.

Interface is same as `container/heap`.Interface but uses type-param.