src/Log.php
public function getInstance(string $instanceName):LogOutputInterface{

		if(!array_key_exists($instanceName, $this->logOutputInterfaces)){
			throw new LogException('invalid logger instance: '.$instanceName);
		}

		return $this->logOutputInterfaces[$instanceName];
	}
public function getInstance(string $instanceName):LogOutputInterface{

		if(!array_key_exists($instanceName, $this->logOutputInterfaces)){
			throw new LogException('invalid logger instance: '.$instanceName);
		}

		return $this->logOutputInterfaces[$instanceName];
	}
@param string $instanceName

@return \chillerlan\Logger\Output\LogOutputInterface
@throws \chillerlan\Logger\LogException