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: load_fact.go
    path of file: ./repos/mgmt/lang/core/sys
    
    the code of the file until where you have to start completion: // Mgmt
// Copyright (C) 2013-2024+ James Shubin and the project contributors
// Written by James Shubin <james@shubin.ca> and the project contributors
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  Se
    
func (obj *LoadFact) Stream(ctx context.Context) error {
	defer close(obj.init.Output) // always signal when we're done

	// it seems the different values only update once every 5
	// seconds, so that's as often as we need to refresh this!
	// TODO: lookup this value if it's something configurable
	ticker := time.NewTicker(time.Duration(5) * time.Second)

	// streams must generate an initial event on startup
	startChan := make(chan struct{}) // start signal
	close(startChan)                 // kick it off!
	defer ticker.Stop()
	for {
		select {
		case <-startChan: // kick the loop once at start
			startChan = nil // disable
		case <-ticker.C: // received the timer event
			// pass
		case <-ctx.Done():
			return nil
		}

		x1, x5, x15, err := load()
		if err != nil {
			return errwrap.Wrapf(err, "could not read load values")
		}

		st := types.NewStruct(types.NewType(loadSignature))
		for k, v := range map[string]float64{"x1": x1, "x5": x5, "x15": x15} {
			if err := st.Set(k, &types.FloatValue{V: v}); err != nil {
				return errwrap.Wrapf(err, "struct could not set key: `%s`", k)
			}
		}

		select {
		case obj.init.Output <- st:
			// send
		case <-ctx.Done():
			return nil
		}
	}
}