assertTrue(s.contains(",informationLevel=0x104"), "toString should include information level 0x104");
        assertTrue(s.contains(",resumeKey=0x0304"), "toString should include lower 16-bit resumeKey hex");
        assertTrue(s.contains(",flags=0x00"), "toString should include flags in hex");
        assertTrue(s.endsWith("]"), "toString should end with closing bracket");

# Migrate from Pydantic v1 to Pydantic v2 { #migrate-from-pydantic-v1-to-pydantic-v2 }

If you have an old FastAPI app, you might be using Pydantic version 1.

FastAPI version 0.100.0 had support for either Pydantic v1 or v2. It would use whichever you had installed.

FastAPI version 0.119.0 introduced partial support for Pydantic v1 from inside of Pydantic v2 (as `pydantic.v1`), to facilitate the migration to v2.

    void testConstructorWithConfigOnly() {
        request = new Smb2QueryInfoRequest(mockConfig);

        assertNotNull(request);
        // SMB2_QUERY_INFO command value is 0x0010
        assertEquals((short) 0x0010, request.getCommand());

        // Verify that default file ID is set
        byte[] expectedFileId = Smb2Constants.UNSPECIFIED_FILEID;
        Field fileIdField;
        try {

        // Then
        assertEquals(4, bytesWritten);
        assertEquals(SmbComTransaction.TRANS_CALL_NAMED_PIPE, dst[0]);
        assertEquals((byte) 0x00, dst[1]);
        assertEquals((byte) 0x00, dst[2]);
        assertEquals((byte) 0x00, dst[3]);
    }

    @Test
    @DisplayName("Test writeSetupWireFormat with offset")
    void testWriteSetupWireFormatWithOffset() {
        // Given

    public static final int PIPE_TYPE_CALL = 0x0100;

    /**
     * Pipe operations should behave like the <code>TransactNamedPipe</code> Win32 Named Pipe function.
     */

    public static final int PIPE_TYPE_TRANSACT = 0x0200;

    /**
     * Named pipe type flag for DCE RPC transact operations.
     */
    public static final int PIPE_TYPE_DCE_TRANSACT = 0x0200 | 0x0400;

    InputStream pipeIn;

		0x8, 0x17, 0x23,
	}) {
		t.Fatalf("Bad key[0].Y, got %v", key0.Y.Bytes())
	} else if key1.E != 0x10001 {
		t.Fatalf("Bad key[1].E: %d", key1.E)
	} else if !bytes.Equal(key1.N.Bytes(), []byte{
		0xd2, 0xfc, 0x7b, 0x6a, 0xa, 0x1e,
		0x6c, 0x67, 0x10, 0x4a, 0xeb, 0x8f, 0x88, 0xb2, 0x57, 0x66, 0x9b, 0x4d, 0xf6,
		0x79, 0xdd, 0xad, 0x9, 0x9b, 0x5c, 0x4a, 0x6c, 0xd9, 0xa8, 0x80, 0x15, 0xb5,

        assertNotNull(result);
        assertTrue(result.contains("FileNotifyInformation"));
        assertTrue(result.contains("nextEntry=0"));
        assertTrue(result.contains("action=0x0000")); // Hexdump.toHexString produces 4-char padded hex
        assertTrue(result.contains("file=null"));
    }

    @ParameterizedTest
    @DisplayName("Test decode with aligned next entry offsets")

```

A response similar to this one should be displayed:

```
Generating RSA private key, 2048 bit long modulus
............................................+++
...........+++
e is 65537 (0x10001)
```

Alternatively, use the following command to generate a private RSA key protected by a password:

```sh
openssl genrsa -aes256 -passout pass:PASSWORD -out private.key 2048
```

	// check for omitted fields
	zb0001Len := uint32(18)
	var zb0001Mask uint32 /* 18 bits */
	_ = zb0001Mask
	if z.PartIndices == nil {
		zb0001Len--
		zb0001Mask |= 0x2000
	}
	// variable map header, size zb0001Len
	err = en.WriteMapHeader(zb0001Len)
	if err != nil {
		return
	}

	// skip if no fields are to be emitted
	if zb0001Len != 0 {
		// write "ID"

# Pydantic v1 から Pydantic v2 への移行 { #migrate-from-pydantic-v1-to-pydantic-v2 }

古い FastAPI アプリがある場合、Pydantic v1 を使っているかもしれません。

FastAPI 0.100.0 は Pydantic v1 / v2 のどちらにも対応しており、インストールされている方を使用しました。

FastAPI 0.119.0 では、Pydantic v2 内からの Pydantic v1 の部分的サポート（`pydantic.v1`）が導入され、v2 への移行が容易になりました。

FastAPI 0.126.0 で Pydantic v1 のサポートは終了しましたが、しばらくの間は `pydantic.v1` は利用可能でした。

/// warning | 注意