code: protected function import($strClass, $strKey=null, $blnForce=false)
  	{
  		$strKey = $strKey ?: $strClass;
  
  		if (\is_object($strKey))
  		{
  			$strKey = \get_class($strClass);
  		}
  
  		if ($blnForce || !isset($this->arrObjects[$strKey]))
  		{
  			$container = static::getContainer();
  
  			if (\is_object($strClass))
  			{
  				$this->arrObjects[$strKey] = $strClass;
  			}
  			elseif ($container->has($strClass) && (strpos($strClass, '\\') !== false || !class_exists($strClass)))
  			{
  				$this->arrObjects[$strKey] = $container->get($strClass);
  			}
  			elseif ($container instanceof Container && isset($container->getRemovedIds()[$strClass]))
  			{
  				throw new ServiceNotFoundException($strClass, null, null, array(), sprintf('The "%s" service or alias has been removed or inlined when the container was compiled. You should either make it public, or stop using the container directly and use dependency injection instead.', $strClass));
  			}
  			elseif (\in_array('getInstance', get_class_methods($strClass)))
  			{
  				$this->arrObjects[$strKey] = \call_user_func(array($strClass, 'getInstance'));
  			}
  			else
  			{
  				$this->arrObjects[$strKey] = new $strClass();
  			}
  		}
  	}
docs: Import a library and make it accessible by its name or an optional key
  
  @param string  $strClass The class name
  @param string  $strKey   An optional key to store the object under
  @param boolean $blnForce If true, existing objects will be overridden
  
  @throws ServiceNotFoundException