/**
     * Maybe semantics packet flag
     */
    int RPC_C_PF_MAYBE = 0x04;
    /**
     * Idempotent operation packet flag
     */
    int RPC_C_PF_IDEMPOTENT = 0x08;
    /**
     * Broadcast with maybe semantics packet flag
     */
    int RPC_C_PF_BROADCAST_MAYBE = 0x10;
    /**
     * Not idempotent operation packet flag
     */
    int RPC_C_PF_NOT_IDEMPOTENT = 0x20;
    /**

        assertNotNull(typedResult, "Typed result should not be null");
        assertEquals(customTree, typedResult, "Should maintain type safety");
    }

    /**
     * Test for close() idempotency.
     * Verifies that calling close multiple times has the same effect as calling it once.
     */
    @Test
    void testClose_idempotency() {
        // Mock a tree that tracks close state