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: config.go
    path of file: ./repos/coder/scaletest/workspacetraffic
    
    the code of the file until where you have to start completion: package workspacetraffic

import (
	"time"

	"github.com/google/uuid"
	"golang.org/x/xerrors"
)

type Config struct {
	// AgentID is the workspace agent ID to which to connect.
	AgentID uuid.UUID `json:"agent_id"`

	// BytesPerTick is the number of bytes to send to the agent per tick.
	BytesPerTick int64 `json:"bytes_per_tick"`

	// 
    
func (c Config) Validate() error {
	if c.AgentID == uuid.Nil {
		return xerrors.Errorf("validate agent_id: must not be nil")
	}

	if c.BytesPerTick <= 0 {
		return xerrors.Errorf("validate bytes_per_tick: must be greater than zero")
	}

	if c.Duration <= 0 {
		return xerrors.Errorf("validate duration: must be greater than zero")
	}

	if c.TickInterval <= 0 {
		return xerrors.Errorf("validate tick_interval: must be greater than zero")
	}

	if c.SSH && c.App.Name != "" {
		return xerrors.Errorf("validate ssh: must be false when app is used")
	}

	return nil
}