Function object

object<T>(
    decoders: DecoderObject<T>,
    decoderName: string,
    keyMap?: DecoderObjectKeyMap<T>,
): Decoder<T>
Decoder for objects with specified field decoders.
Type Parameters
- T
Parameters
- decoders: DecoderObject<T>
  Key/value pairs of decoders for each object field.
- decoderName: string
  How to display the name of the object being decoded in errors.
- OptionalkeyMap: DecoderObjectKeyMap<T>
  Optional map between json field names and user land field names. Useful when the client model does not match with what the server sends.
Returns Decoder<T>
A decoder that validates and returns objects matching the specified structure
Example
```
interface User {
  firstName: string;
  lastName: string;
  age: number;
}

const userDecoder = JsonDecoder.object<User>(
  {
    firstName: JsonDecoder.string,
    lastName: JsonDecoder.string,
    age: JsonDecoder.number
  },
  'User',
  {
    firstName: 'first_name',
    lastName: 'last_name'
  }
);

const json = {
  first_name: 'John',
  last_name: 'Doe',
  age: 30
};

userDecoder.decode(json); // Ok<User>({value: {firstName: 'John', lastName: 'Doe', age: 30}})
```