The Key Setters

This issue tracks the key setter methods.
The key setters.
- [ ] Key Setters
- [ ] std::string version
- [ ] char * version
- [ ] std::vector version

The issue mentions implementing key setter methods for std::string, char*, and std::vector versions. Look for existing key-related code in the repository to understand the context. Determine what a 'key setter' does in this project and where these methods should be added. Check if there are similar setter examples or a class definition to follow.

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