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: container_log.go
    path of file: ./repos/podman/libpod
    
    the code of the file until where you have to start completion: //go:build !remote

package libpod

import (
	"context"
	"errors"
	"fmt"
	"os"
	"time"

	"github.com/containers/podman/v5/libpod/define"
	"github.com/containers/podman/v5/libpod/events"
	"github.com/containers/podman/v5/libpod/logs"
	systemdDefine "github.com/containers/podman/v5/pkg/systemd/define"
	"github.com/nxadm/tail"
	"github.com/nxadm/tail/watch"
	"github.com/sirupsen/logrus"
)

// logDrivers stores the currently available log drivers, do not modify
var logDrivers []string

func init() {
	logDrivers = append(logDrivers, define.KubernetesLogging, define.NoLogging, define.PassthroughLogging)
}

// Log is a runtime function that can read one or more container logs.
func (r *Runtime) Log(ctx context.Context, containers []*Container, options *logs.LogOptions, logC
    
func (c *Container) ReadLog(ctx context.Context, options *logs.LogOptions, logChannel chan *logs.LogLine, colorID int64) error {
	switch c.LogDriver() {
	case define.PassthroughLogging:
		// if running under systemd fallback to a more native journald reading
		if unitName, ok := c.config.Labels[systemdDefine.EnvVariable]; ok {
			return c.readFromJournal(ctx, options, logChannel, colorID, unitName)
		}
		return fmt.Errorf("this container is using the 'passthrough' log driver, cannot read logs: %w", define.ErrNoLogs)
	case define.NoLogging:
		return fmt.Errorf("this container is using the 'none' log driver, cannot read logs: %w", define.ErrNoLogs)
	case define.JournaldLogging:
		return c.readFromJournal(ctx, options, logChannel, colorID, "")
	case define.JSONLogging:
		// TODO provide a separate implementation of this when Conmon
		// has support.
		fallthrough
	case define.KubernetesLogging, "":
		return c.readFromLogFile(ctx, options, logChannel, colorID)
	default:
		return fmt.Errorf("unrecognized log driver %q, cannot read logs: %w", c.LogDriver(), define.ErrInternal)
	}
}