protected function analyzeRouteOperationResponses($path, $httpMethod, $operation)
	{
		if (!isset($operation['responses'])) {
			return null;
		}

		$resolvedResponsesReferences = [];

		foreach ($operation['responses'] as $httpCode => $response) {
			if (!isset($response['content'])) {
				continue;
			}

			$mediaType = array_keys($response['content'])[0];

			if (!isset($response['content'][$mediaType]['schema'])) {
				continue;
			}

			// Response object or reference ?
			if (isset($response['content'][$mediaType]['schema']['$ref'])) {
				$resolved = $this->resolveReference($response['content'][$mediaType]['schema']['$ref']);
				$this->makeResponseResource($resolved['name'], $resolved['target']);
				$resolvedResponsesReferences[$httpCode] = $resolved;
			} else {
				//$schema = $response['content'][$mediaType]['schema'];
				// @todo what to do ?
			}
		}

		if (count($resolvedResponsesReferences) == 0) {
			return null;
		}

		return $resolvedResponsesReferences;
	}