Struct type for uid predicate

[rocky (Rocky Sharma)]

@smantha

I don’t know golang but the example here is specifying uid within the back tick json syntax.
As in,

Uid string `json:"uid,omitempty"`

See person struct

https://godoc.org/github.com/dgraph-io/dgo

Thank you bro! This solved the issue but now, OwnerUserID is not storing data passed.