Description
When running the following example code in the documents
```
query := "SELECT x.* FROM `travel-sample` x WHERE x.`type`=$type LIMIT 10;"
params := make(map[string]interface{}, 1)
params["type"] = "hotel"
rows, err := cluster.Query(query, &gocb.QueryOptions{NamedParameters: params})
```
The `$type` parameter is not set in the query upon execution.