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: replication_builtins.go
    path of file: ./repos/cockroach/pkg/sql/sem/builtins
    
    the code of the file until where you have to start completion: // Copyright 2021 The Cockroach Authors.
//
// Use of t
    
func init() {
	for k, v := range replicationBuiltins {
		// Most builtins in this file are of the Normal class, but there are a
		// couple of the Generator class.
		const enforceClass = false
		registerBuiltin(k, v, tree.NormalClass, enforceClass)
	}
}