Is it possible to declare an interface with fields in Go, like in Java/C#?

Hi everyone! I'm new to Go, transitioning from Java. In Java, I'm used to interfaces containing not only method signatures but also fields (properties). For example: ```java public interface Animal { String name = "Unknown"; void speak(); } ``` Now I'm trying to do the same in Go: ```go type Animal interface { Name string Speak() } ``` The compiler gives an error: `interface contains embedded field Name which is not a method`. I'm confused. How do you properly describe a structure in Go that is guaranteed to contain certain fields? I need any object implementing the `Animal` interface to necessarily have a `Name` field (a string). Without this, my program breaks at compile time. I tried doing this: ```go type Animal struct { Name string ```