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: match.go
    path of file: ./repos/inbucket/cmd/client
    
    the code of the file until where you have to start completion: package main

import (
	"context"
	"encoding/json"
	"flag"
	"fmt"
	"net/mail"
	"os"
	"time"

	"github.com/google/subcommands"
	"github.com/inbucket/inbucket/v3/pkg/rest/client"
)

type matchCmd struct {
	output  string
    
func (m *matchCmd) match(header *client.MessageHeader) bool {
	if m.maxAge > 0 {
		if time.Since(header.Date) > m.maxAge {
			return false
		}
	}
	if m.subject.Defined() {
		if !m.subject.MatchString(header.Subject) {
			return false
		}
	}
	if m.from.Defined() {
		from := header.From
		addr, err := mail.ParseAddress(from)
		if err == nil {
			// Parsed successfully
			from = addr.Address
		}
		if !m.from.MatchString(from) {
			return false
		}
	}
	if m.to.Defined() {
		match := false
		for _, to := range header.To {
			addr, err := mail.ParseAddress(to)
			if err == nil {
				// Parsed successfully
				to = addr.Address
			}
			if m.to.MatchString(to) {
				match = true
				break
			}
		}
		if !match {
			return false
		}
	}
	return true
}