EncodeFieldInterface is a proxy between the zap field and the encoder, determining the appropriate representation of each field value.

IsNilValue performs a panic safe nil check on v, including embedded interface values.

IsUnmarshalableValue performs a panic safe basic type and value assertion on v to check if it is apt for Unmarshal operations (that is, a non nil pointer value).

HTTPObject is a specialized nested struct which transforms into a serialized field.

Object is a field wrapper which encodes them into a plain, key/value struct upon marshal.