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):

#define RD_BLOCK_SIZE 128
#define REFRESH_MIN 15 // refresh every 15 minutes (developer account 500 calls/day -->max 20 calls per hour)
#define DEBUG_LEVEL 0  // 0 = disable ; 1 = INFO ; 2 = DEBUG

// Settings
// create yourself a (free) developer account on wunderground website; it can handle up to 500 calls/day for free.
char* apiKey   = "YOUR****-KEY";         // your personal 8 hex characters api key from your account at Wunderground (need to request this key once !)
char* location = "YOUR****ATION";        // your location
char* host     = "api.wunderground.com"; // The API URL in orde to get this working you need to use a DNS server


// Global variables
char value[50];

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

Sincerely,
Emma