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: group__relay_pull.go
    path of file: ./repos/lal/pkg/logic
    
    the code of the file until where you have to start completion: // Copyright 2022, Chef.  All rights reserved.
// https://github.com/q191201771/lal
//
// Use of this source code is governed by a MI
    
func (group *Group) StartPull(info base.ApiCtrlStartRelayPullReq) (string, error) {
	group.mutex.Lock()
	defer group.mutex.Unlock()

	group.pullProxy.apiEnable = true
	group.pullProxy.pullUrl = info.Url
	group.pullProxy.pullTimeoutMs = info.PullTimeoutMs
	group.pullProxy.pullRetryNum = info.PullRetryNum
	group.pullProxy.autoStopPullAfterNoOutMs = info.AutoStopPullAfterNoOutMs
	group.pullProxy.rtspMode = info.RtspMode
	group.pullProxy.debugDumpPacket = info.DebugDumpPacket

	return group.pullIfNeeded()
}