Security-related question about a possible exposed credential

[Emma-NYL]

Hello,

My name is Emma, I am conducting an academic study on possible credential exposure in public GitHub repositories.

While analyzing this repository, I found a string that may represent a credential. I'm including the code snippet below containing possible leakage. To avoid exposing sensitive information publicly, I marked the sensitive information.

Could you please help clarify whether the detected string is:

1. a real credential, or
2. a placeholder / example value?

Thank you for your time.

---

Code snippet (sensitive values masked):

      // Configure a S3 storer
      s3 := &barkup.S3{
        Region: "us-east-1",
        Bucket: "backups",
        AccessKey: "*************",
        ClientSecret: "**********************",
      }

      // Export the database, and send it to the
      // bucket in the db_backups folder
      err := mysql.Export().To("db_backups/", s3)
      if (err != nil) { panic(err) }

Thank you in advance for your time - I really appreciate it!

Sincerely,
Emma