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+DEPRECATED
+SYNOPSIS
+        int prevent_insert()
+
+DESCRIPTION
+        In compat mode, this function is used by the efun transfer().
+
+        Define this function in objects that are neither living nor
+        rooms if you want to prevent to put something into current
+        object.
+
+        Return true if ok, otherwise 0. That means that default is
+        that it is not possible to put something into an object.
+
+HISTORY
+        Deprecated in LDMud 3.3 as transfer() has been deprecated.
+
+SEE ALSO
+        transfer(E), can_put_and_get(A)