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: logs.go
    path of file: ./repos/up/internal/cli/logs
    
    the code of the file until where you have to start completion: package logs

import (
	"io"
	"os"
	"time"

	"github.com/pkg/errors"
	"github.com/tj/go/term"
	"github.com/tj/kingpin"

	"github.com/apex/up"
	"github.com/apex/up/internal/cli/root"
	"github.com/apex/up/internal/stats"
	"github.com/apex/up/internal/util"
)

func init() {
	cmd := root.Command("logs", "Show log output.")
	cmd.Example(`up logs`, "Show logs from the past hour.")
	cmd.Example(`up logs -S 30m`, "Show logs from the past 30 minutes.")
	cmd.Example(`up logs -S 5h`, "Show logs from the past 5 hours.")
	cmd.Example(`up logs -f`, "Show live log output.")
	cmd.Example(`up logs error`, "Show error logs.")
	cmd.Example(`up logs 'level != "info"'`, "Show non-info logs.")
	cmd.Example(`up logs 'production (warn or error)'`, "Show 4xx and 5xx responses in production.")
	cmd.Example(`up logs 'production error method in ("POST", "PUT", "DELETE")'`, "Show production 5xx responses with a POST, PUT, or DELETE method.")
	cmd.Example(`up logs 'error or fatal'`, "Show error and fatal logs.")
	cmd.Example(`up logs 'message = "user login"'`, "Show logs with a specific message.")
	cmd.Example(`up logs 'status = 200 duration > 1.5s'`, "Show 200 responses with latency above 1500ms.")
	cmd.Example(`up logs 'size > 100kb'`, "Show responses with bodies larger than 100kb.")
	cmd.Example(`up logs 'status >= 400'`, "Show 4xx and 5xx responses.")
	cmd.Example(`up logs 'user.email contains "@apex.sh"'`, "Show emails containing @apex.sh.")
	cmd.Example(`up logs 'user.email = "*@apex.sh"'`, "Show emails ending with @apex.sh.")
	cmd.Example(`up logs 'user.email = "tj@*"'`, "Show emails starting with tj@.")
	cmd.Example(`up logs 'method in ("POST", "PUT") ip = "207.*" status = 200 duration >= 50'`, "Show logs with a more complex query.")
	cmd.Example(`up logs error | jq`, "Pipe JSON error logs to the jq tool.")

	query := cmd.Arg("query", "Query pattern for filtering logs.").String()
	follow := cmd.Flag("follow", "Follow or tail the live logs.").Short('f').Bool()
	since := cmd.Flag("since", "Show logs since duration (30s, 5m, 2h, 1h30m, 3d, 1M).").Short('S').Default("1d").String()
	expand := cmd.Flag("expand", "Show expanded logs.").Short('e').Bool()

	cmd.Action(func(_ *kingpin.ParseContext) error {
		c, p, err := root.Init()
		if err != nil {
			return errors.Wrap(err, "initializing")
		}

		var s time.Duration

		if *since != "" {
			s, err = util.ParseDuration(*since)
			if err != nil {
				return errors.Wrap(err, "parsing --since duration")
			}
		}

		if *follow {
			s = time.Duration(0)
		}

		q := *query

		stats.Track("Logs", map[string]interface{}{
			"query":        q != "",
			"query_length": len(q),
			"follow":       *follow,
			"since":        s.Round(time.S
    
func init() {
	cmd := root.Command("logs", "Show log output.")
	cmd.Example(`up logs`, "Show logs from the past hour.")
	cmd.Example(`up logs -S 30m`, "Show logs from the past 30 minutes.")
	cmd.Example(`up logs -S 5h`, "Show logs from the past 5 hours.")
	cmd.Example(`up logs -f`, "Show live log output.")
	cmd.Example(`up logs error`, "Show error logs.")
	cmd.Example(`up logs 'level != "info"'`, "Show non-info logs.")
	cmd.Example(`up logs 'production (warn or error)'`, "Show 4xx and 5xx responses in production.")
	cmd.Example(`up logs 'production error method in ("POST", "PUT", "DELETE")'`, "Show production 5xx responses with a POST, PUT, or DELETE method.")
	cmd.Example(`up logs 'error or fatal'`, "Show error and fatal logs.")
	cmd.Example(`up logs 'message = "user login"'`, "Show logs with a specific message.")
	cmd.Example(`up logs 'status = 200 duration > 1.5s'`, "Show 200 responses with latency above 1500ms.")
	cmd.Example(`up logs 'size > 100kb'`, "Show responses with bodies larger than 100kb.")
	cmd.Example(`up logs 'status >= 400'`, "Show 4xx and 5xx responses.")
	cmd.Example(`up logs 'user.email contains "@apex.sh"'`, "Show emails containing @apex.sh.")
	cmd.Example(`up logs 'user.email = "*@apex.sh"'`, "Show emails ending with @apex.sh.")
	cmd.Example(`up logs 'user.email = "tj@*"'`, "Show emails starting with tj@.")
	cmd.Example(`up logs 'method in ("POST", "PUT") ip = "207.*" status = 200 duration >= 50'`, "Show logs with a more complex query.")
	cmd.Example(`up logs error | jq`, "Pipe JSON error logs to the jq tool.")

	query := cmd.Arg("query", "Query pattern for filtering logs.").String()
	follow := cmd.Flag("follow", "Follow or tail the live logs.").Short('f').Bool()
	since := cmd.Flag("since", "Show logs since duration (30s, 5m, 2h, 1h30m, 3d, 1M).").Short('S').Default("1d").String()
	expand := cmd.Flag("expand", "Show expanded logs.").Short('e').Bool()

	cmd.Action(func(_ *kingpin.ParseContext) error {
		c, p, err := root.Init()
		if err != nil {
			return errors.Wrap(err, "initializing")
		}

		var s time.Duration

		if *since != "" {
			s, err = util.ParseDuration(*since)
			if err != nil {
				return errors.Wrap(err, "parsing --since duration")
			}
		}

		if *follow {
			s = time.Duration(0)
		}

		q := *query

		stats.Track("Logs", map[string]interface{}{
			"query":        q != "",
			"query_length": len(q),
			"follow":       *follow,
			"since":        s.Round(time.Second),
			"expand":       *expand,
		})

		logs := p.Logs(up.LogsConfig{
			Region:     c.Regions[0],
			Since:      time.Now().Add(-s),
			Follow:     *follow,
			Expand:     *expand,
			Query:      q,
			OutputJSON: !term.IsTerminal(os.Stdout.Fd()),
		})

		if _, err := io.Copy(os.Stdout, logs); err != nil {
			return errors.Wrap(err, "writing logs")
		}

		return nil
	})
}