You can use Pydantic's model configuration to `forbid` any `extra` fields:

{* ../../docs_src/query_param_models/tutorial002_an_py310.py hl[10] *}

If a client tries to send some **extra** data in the **query parameters**, they will receive an **error** response.

     */
    SmbFileHandle ensureOpen() throws CIFSException;

    /**
     * Receive data from the pipe
     *
     * @param buf buffer to receive data into
     * @param off offset in the buffer
     * @param length maximum length to receive
     * @return number of bytes received
     * @throws IOException if an I/O error occurs
     */

            assertThrows(CIFSException.class, handle::getSessionKey);
        }
    }

    @Nested
    @DisplayName("Send/Receive Fragment Tests")
    class SendReceiveFragmentTests {

        @Test
        @DisplayName("Should send and receive fragment successfully")
        void testDoSendReceiveFragment_Success() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();

                totalAllocated.incrementAndGet();
            } catch (IOException e) {
                log.warn("Failed to pre-allocate receive buffer", e);
            }
        }

        log.info("Initialized RDMA buffer pool with {} send and {} receive buffers", availableSendRegions.size(),
                availableReceiveRegions.size());
    }

    /**

    }

    /**
     * Get maximum receive size
     *
     * @return maximum receive size in bytes
     */
    public int getMaxReceiveSize() {
        return maxReceiveSize;
    }

    /**
     * Set maximum receive size
     *
     * @param maxReceiveSize maximum receive size in bytes
     */
    public void setMaxReceiveSize(int maxReceiveSize) {

        this.creditsGranted = creditsGranted;
    }

    /**
     * Get maximum receive size
     *
     * @return maximum receive size in bytes
     */
    public int getMaxReceiveSize() {
        return maxReceiveSize;
    }

    /**
     * Set maximum receive size
     *
     * @param maxReceiveSize maximum receive size in bytes
     */
    public void setMaxReceiveSize(int maxReceiveSize) {

# Request Files { #request-files }

You can define files to be uploaded by the client using `File`.

/// info

To receive uploaded files, first install <a href="https://github.com/Kludex/python-multipart" class="external-link" target="_blank">`python-multipart`</a>.

Make sure you create a [virtual environment](../virtual-environments.md){.internal-link target=_blank}, activate it, and then install it, for example:

```console

    public abstract void send(ByteBuffer data, RdmaMemoryRegion region) throws IOException;

    /**
     * Receive data using RDMA
     *
     * @param timeout timeout in milliseconds
     * @return received data buffer, or null if timeout
     * @throws IOException if receive fails
     */
    public abstract ByteBuffer receive(int timeout) throws IOException;

    /**
     * Perform RDMA read operation
     *

        assertEquals(1, cleaned);
        assertNull(leaseManager.getLease(key));
    }

    @Test
    @DisplayName("Should not clean up recent leases")
    void testCleanupRecentLeases() {
        String path = "/share/recent.txt";
        int requestedState = Smb2LeaseState.SMB2_LEASE_READ_CACHING;

        Smb2LeaseKey key = leaseManager.requestLease(path, requestedState);

     *
     * @return send operation count
     */
    public long getRdmaSends() {
        return rdmaSends.get();
    }

    /**
     * Get total number of RDMA receive operations
     *
     * @return receive operation count
     */
    public long getRdmaReceives() {
        return rdmaReceives.get();
    }

    /**
     * Get total bytes transferred via RDMA
     *