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: grpcc.go
    path of file: ./repos/riot/net/grpc
    
    the code of the file until where you have to start completion: // Copyright 2016 ego authors
//
// Licensed under the Apache License, Version 2.0 (the "License"): you may
// not use this file except in compliance with the License. You may obtain
// a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES O
    
func InitDelGrpcc(address string, docid string) int32 {
	// Set up a connection to the server.
	conn, err := grpc.Dial(address, grpc.WithInsecure())
	if err != nil {
		log.Fatalf("did not connect: %v", err)
		zlog.Error("did not connect: ", err)
	}
	defer conn.Close()
	c := pb.NewGreeterClient(conn)

	// Contact the server and print out its response.
	r, err := c.Delete(context.Background(), &pb.DeleteReq{
		DocId: docid,
	})

	if err != nil {
		log.Fatalf("could not greet: %v", err)
		zlog.Error("could not greet: ", err)
		return r.Result
	}

	// log.Printf("Greeting: %d", r.Result)
	return r.Result
}