generated repository should return concrete type instead of interface

[hhow09]

Is your feature request related to a problem? Please describe.
generated repository should return concrete type instead of interface

currently NewUserRepository in example is returning interface.
However as suggestion in go codereview

Go interfaces generally belong in the package that uses values of the interface type, not the package that implements those values. The implementing package should return concrete (usually pointer or struct) types ¹

*UserRepositoryMongo should be returned.

btw you can assert the implementation in test file

// user_repo_test.go
var _ UserRepository  = (*UserRepositoryMongo)(nil)

Describe the solution you'd like
return concrete type

Footnotes

1. https://go.dev/wiki/CodeReviewComments#interfaces ↩

[sunboyy]

I see. I will work on it.

[sunboyy]

Fixed by #44