"body": {"type": "string", "title": "Body", "default": ""},
                            "events": {
                                "items": {"$ref": "#/components/schemas/MessageEvent"},
                                "type": "array",
                                "title": "Events",
                                "default": [],
                            },
                        },

            )
            assert (
                field_info.default == Undefined or field_info.default == RequiredParam
            ), (
                f"`{field_info.__class__.__name__}` default value cannot be set in"
                f" `Annotated` for {param_name!r}. Set the default value with `=` instead."
            )
            if value is not inspect.Signature.empty:

    }

    /**
     * LSA Quality of Service information.
     */
    public static class LsarQosInfo extends NdrObject {

        /**
         * Default constructor for LsarQosInfo.
         */
        public LsarQosInfo() {
            // Default constructor
        }

        /** Length of the QoS information. */
        public int length;
        /** Security impersonation level. */

Like `item.model_dump(exclude_unset=True)`.

That would generate a `dict` with only the data that was set when creating the `item` model, excluding default values.

Then you can use this to generate a `dict` with only the data that was set (sent in the request), omitting default values:

{* ../../docs_src/body_updates/tutorial002_py310.py hl[32] *}

### Using Pydantic's `update` parameter { #using-pydantics-update-parameter }

They are, more or less, at opposite ends, complementing each other.

Requests has a very simple and intuitive design, it's very easy to use, with sensible defaults. But at the same time, it's very powerful and customizable.

That's why, as said in the official website:

> Requests is one of the most downloaded Python packages of all time

 *   <li>{@link #getIndexTimeout()}</li>
 *   <li>{@link #getIndicesTimeout()}</li>
 *   <li>{@link #getBulkTimeout()}</li>
 *   <li>{@link #getClusterTimeout()}</li>
 * </ul>
 *
 * <p>Default settings and array settings can be customized using:</p>
 * <ul>
 *   <li>{@link #defaultSettings()}</li>
 *   <li>{@link #defaultArraySettings()}</li>
 * </ul>
 *

            throw new IORuntimeException(ex);
        }
    }

    /**
     * Converts a byte array to an object using the default security filter.
     * <p>
     * This method applies a default ObjectInputFilter to prevent deserialization attacks.
     * Only classes matching the default allowed patterns can be deserialized.
     * </p>
     *
     * @param bytes the byte array (must not be {@literal null})

     * Represents a 128-bit UUID as defined by DCE/RPC specification.
     */
    public static class uuid_t extends NdrObject {

        /**
         * Default constructor for uuid_t.
         */
        public uuid_t() {
            // Default constructor
        }

        /**
         * The low field of the timestamp.
         */
        public int time_low;
        /**

						args.QuoteEscapeCharacter = defaultQuoteEscapeCharacter
					case 1:
						args.QuoteEscapeCharacter = s
					default:
						return fmt.Errorf("unsupported QuoteEscapeCharacter '%v'", s)
					}
				case "Comments":
					if len(s) != 0 {
						args.CommentCharacter = s
					}
				default:
					return errors.New("unrecognized option")
				}
			}
		}
	}

	args.unmarshaled = true
	return nil

			if err != nil {
				err = msgp.WrapError(err, "Key")
				return
			}
		case "Value":
			z.Value, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "Value")
				return
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)
				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable