`OAuth2PasswordBearer` makes **FastAPI** know that it is a security scheme. So it is added that way to OpenAPI.

But `OAuth2PasswordRequestForm` is just a class dependency that you could have written yourself, or you could have declared `Form` parameters directly.

But as it's a common use case, it is provided by **FastAPI** directly, just to make it easier.

///

### Use the form data { #use-the-form-data }

        byte[] buffer = new byte[32];
        int bytesWritten = hmac.engineDigest(buffer, 5, 16);

        assertEquals(16, bytesWritten);
        // Check that bytes were written to the correct position
        byte[] extractedResult = Arrays.copyOfRange(buffer, 5, 21);
        assertEquals(16, extractedResult.length);
    }

    @Test
    void testEngineDigestWithInsufficientBuffer() {

        // Act
        // Get output stream and write data to it
        OutputStream os = ntlmConnection.getOutputStream();
        assertNotNull(os);
        byte[] testData = "test data".getBytes();
        os.write(testData);
        os.flush();
        os.close();

        // Assert
        // Verify that data was written to the underlying stream through CacheStream

          @Throws(IOException::class)
          override fun writeTo(sink: BufferedSink) {
            val forwardingSink = object : ForwardingSink(sink) {
              private var totalBytesWritten: Long = 0
              private var completed = false

              override fun write(source: Buffer, byteCount: Long) {
                super.write(source, byteCount)
                totalBytesWritten += byteCount

import org.jspecify.annotations.Nullable;

/**
 * Tests that all {@code public static} methods "inherited" from superclasses are "overridden" in
 * each immutable-collection class. This ensures, for example, that a call written "{@code
 * ImmutableSortedSet.copyOf()}" cannot secretly be a call to {@code ImmutableSet.copyOf()}.
 *
 * @author Chris Povirk
 */
@NullUnmarked
public class FauxveridesTest extends TestCase {

import org.jspecify.annotations.Nullable;

/**
 * Tests that all {@code public static} methods "inherited" from superclasses are "overridden" in
 * each immutable-collection class. This ensures, for example, that a call written "{@code
 * ImmutableSortedSet.copyOf()}" cannot secretly be a call to {@code ImmutableSet.copyOf()}.
 *
 * @author Chris Povirk
 */
@NullUnmarked
public class FauxveridesTest extends TestCase {

import org.jspecify.annotations.NullMarked;
import org.jspecify.annotations.Nullable;
import org.junit.Ignore;

/**
 * Base class for map testers.
 *
 * <p>TODO: see how much of this is actually needed once Map testers are written. (It was cloned
 * from AbstractCollectionTester.)
 *
 * @param <K> the key type of the map to be tested.
 * @param <V> the value type of the map to be tested.
 * @author George van den Driessche
 */
@GwtCompatible

        }
    }

    /**
     * Writes the specified byte to this file output stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public void write(final int b) throws IOException {
        this.tmp[0] = (byte) b;
        write(this.tmp, 0, 1);
    }

    /**
     * Writes b.length bytes from the specified byte array to this

    }

    @Test
    void testTimeReadWriteZero() {
        byte[] buffer = new byte[8];
        ServerMessageBlock.writeTime(0, buffer, 0);
        // When zero is written, it stays as zero in buffer
        // When read back, it converts to negative Unix time due to Windows FileTime conversion
        long expectedTime = -SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601;

   *     {@code double}) in the proper order.
   */
  private void writeObject(ObjectOutputStream s) throws IOException {
    s.defaultWriteObject();

    // Write out array length
    int length = length();
    s.writeInt(length);

    // Write out all elements in the proper order.
    for (int i = 0; i < length; i++) {
      s.writeDouble(get(i));
    }
  }