---@diagnostic disable: missing-return, lowercase-global

---@param cvar string 
---@return 1nil value 
---Returns the value of a configuration variable in a format compatible with Lua conditional expressions. All configuration variables are stored as strings; many CVars represent the state of a binary flag and are stored as either "1" or "0". This function provides a convenient way to test the state of such variables without the extra syntax required to explicitly check for "1" or "0" values.
function GetCVarBool(cvar) end