You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: consistency.go
    path of file: ./repos/golang-samples/docs/appengine/datastore/consistency
    
    the code of the file until where you have to start completion: // Copyright 2019 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "Licens
    
func example() {
	// [START gae_consistency_data_definition_code]
	g := Greeting{ /* ... */ }
	key := datastore.NewIncompleteKey(ctx, "Greeting", nil)
	// [END gae_consistency_data_definition_code]

	// [START gae_consistency_query_code]
	q := datastore.NewQuery("Greeting").Order("-Date").Limit(10)
	// [END gae_consistency_query_code]

	_ = g
	_ = key
	_ = q
}