def main(user_id: str):
    return user_id


# A Pydantic model
class User(BaseModel):
    id: int
    name: str
    joined: date
```

That can then be used like:

```Python
my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {
    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

my_second_user: User = User(**second_user_data)
```

/// info

				writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrPreconditionFailed), r.URL)
				return true
			}
		}
	}

	// x-amz-copy-source-if-match : Return the object only if its entity tag (ETag) is the
	// same as the one specified; otherwise return a 412 (precondition failed).
	ifMatchETagHeader := r.Header.Get(xhttp.AmzCopySourceIfMatch)
	if ifMatchETagHeader != "" {
		if !isETagEqual(objInfo.ETag, ifMatchETagHeader) {

  }

  /**
   * A timestamp like "191216030210Z" or "20191215190210-0800" for 2019-12-15T19:02:10-08:00. This
   * is the same as [UTC_TIME] with the exception of the 4-digit year.
   */
  val GENERALIZED_TIME =
    BasicDerAdapter(
      name = "GENERALIZED TIME",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 24L,
      codec =
        object : BasicDerAdapter.Codec<Long> {

   * same times as {@code triggerShutdown}.
   */
  protected void triggerShutdown() {}

  /**
   * Returns the {@link Executor} that will be used to run this service. Subclasses may override
   * this method to use a custom {@link Executor}, which may configure its worker thread with a
   * specific name, thread group or priority. The returned executor's {@link

    @DisplayName("createContext: rejects NetBIOS/short host names")
    void createContext_rejectsShortNetbiosHost() {
        Kerb5Authenticator auth = new Kerb5Authenticator((Subject) null);

        // Using an uppercase short name (no dot) must throw an unsupported operation
        SmbUnsupportedOperationException ex =
                assertThrows(SmbUnsupportedOperationException.class, () -> auth.createContext(tc, null, "SERVER", new byte[0], false));

    #  You can specify target name of generated parameter bean for procedure.
    #  This property is valid only when isGenerateProcedureParameterBean is valid.
    #   e.g. list:{prefix:SP_}
    #  And you can specify procedures through DB link.
    #  This is treated as additional setting
    #  so it is independent from specifications for main schema.
    #   e.g. SP_FOO@NEXT_LINK (when DB link name is 'NEXT_LINK')  
    #

					return
				}
				if opts.Filter != nil {
					if opts.Filter(fi) {
						if !send(fi.ToObjectInfo(bucket, fi.Name, vcfg != nil && vcfg.Versioned(fi.Name))) {
							return
						}
					}
				} else {
					if !send(fi.ToObjectInfo(bucket, fi.Name, vcfg != nil && vcfg.Versioned(fi.Name))) {
						return
					}
				}
				continue
			}
			fivs, err := entry.fileInfoVersions(bucket)

		`Root user name (access key) and root password (secret key) are expected to be specified via environment variables MINIO_ROOT_USER and MINIO_ROOT_PASSWORD respectively`,
	)

	ErrMissingEnvCredentialRootPassword = newErrFn(
		"Missing credential environment variable, \""+EnvRootPassword+"\"",
		"Environment variable \""+EnvRootPassword+"\" is missing",

				// Skip transitioned objects for now. TBD
				if version.IsRemote() {
					stopFn(version.Size, errors.New("ILM Tiered version will be skipped for now"))
					continue
				}

				// Apply lifecycle rules on the objects that are expired.
				if filterLifecycle(bucket, version.Name, version) {
					expired++

   * malformed.
   */
  @Throws(IOException::class)
  fun checkLowercase(name: ByteString): ByteString {
    for (i in 0 until name.size) {
      if (name[i] in 'A'.code.toByte()..'Z'.code.toByte()) {
        throw IOException("PROTOCOL_ERROR response malformed: mixed case name: ${name.utf8()}")
      }
    }
    return name
  }