Golang inheritance hack

Golang isn't OOP, but one type can inherit from another, for example to extend it properties. It is for example used to have your own custom context in the router I use called Echo.

The way you usually set properties on types when you do this when TypeB inherit from TypeA is something like &TypeB{typeAValue}. But sometimes you need to specify the properties. Then you need to do it like this &TypeB{TypeA: typeAValue}. Took me way too long to figure this out,