log/field.go
func Object(key string, obj interface{}) Field {
	return Field{
		key:          key,
		fieldType:    objectType,
		interfaceVal: obj,
	}
}
func Object(key string, obj interface{}) Field {
	return Field{
		key:          key,
		fieldType:    objectType,
		interfaceVal: obj,
	}
}
func Object ( key string , obj interface { } ) Field { return Field { key : key , fieldType : objectType , interfaceVal : obj , } }
// Object adds an object-valued key:value pair to a Span.LogFields() record
Object adds an object - valued key : value pair to a Span . LogFields () record