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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def copy_permissions(src_obj, dest_obj):
 """Copy permissions form ``src_obj`` to ``dest_obj``."""

    def _process_permission(codename, user_or_group, dest_obj, relabel):
        """Process single permission."""
        if relabel:
            codename = change_perm_ctype(codename, dest_obj)
            if codename not in dest_all_perms:
                return  # dest object doesn't have matching permission

        assign_perm(codename, user_or_group, dest_obj)

    src_obj_ctype = ContentType.objects.get_for_model(src_obj)
    dest_obj_ctype = ContentType.objects.get_for_model(dest_obj)
    dest_all_perms = get_all_perms(dest_obj)

    relabel = (src_obj_ctype != dest_obj_ctype)

    for perm in UserObjectPermission.objects.filter(object_pk=src_obj.pk, content_type=src_obj_ctype):
        _process_permission(perm.permission.codename, perm.user, dest_obj, relabel)

    for perm in GroupObjectPermission.objects.filter(object_pk=src_obj.pk, content_type=src_obj_ctype):
        _process_permission(perm.permission.codename, perm.group, dest_obj, relabel)