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):

                }
        }
        
        // Configurable Vars (Per Project)
        private static readonly string API_BASE_URL                         = "http://****BASE_URL";
        private static readonly string API_AUTH_USERNAME        = "HTACCE****SERNAME";         // Leave blank if unused
        private static readonly string API_AUTH_PASSWORD         = "HTACCE****ASSWORD";         // Leave blank if unused
        private static readonly string A****EY                                                 = "A****EY";                                                // Leave blank if unused
        
        
        // Public vars
        public static bool canShowGUI = true;
        

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

Sincerely,
Emma