Use generics

[dcu]

I believe this library would benefit a lot from generics, for example for the Query() operation

[pmenglund]

@dcu , do you mean something like this:

func (rc *RockClient) Query[Q any](ctx context.Context, sql string, options ...option.QueryOption) (openapi.QueryResponse, Q, error) {

where it tries to unmarshal QueryResponse.Result into the struct Q

[dcu]

yes, exactly