src/ExceptionHandler.php
function unregisterException(string $class) {
        if(isset($this->exceptions[$class])) {
            $this->exceptions[$class] = null;
            unset($this->exceptions[$class]);
        }
        
        return $this;
    }
function unregisterException(string $class) {
        if(isset($this->exceptions[$class])) {
            $this->exceptions[$class] = null;
            unset($this->exceptions[$class]);
        }
        
        return $this;
    }
Unregisters an exception.
If the exception does not exist or is not registered, then this will do nothing (no-op).
@param string  $class
@return $this