| 12345678910111213141516 | package userimport "context"type UserService interface {	CheckPassword(ctx context.Context, username string, password string) (bool, error)}type UserServiceImpl struct{}func (s UserServiceImpl) CheckPassword(ctx context.Context, username string, password string) (bool, error) {	if username == "admin" && password == "admin" {		return true, nil	}	return false, nil}
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