@Operation(hidden = true)
	@GetMapping(value = DEFAULT_API_DOCS_URL_YAML + "/{group}", produces = APPLICATION_OPENAPI_YAML)
	public byte[] openapiYaml(HttpServletRequest request, @Value(DEFAULT_API_DOCS_URL_YAML) String apiDocsUrl,
			@PathVariable String group, Locale locale)
			throws JsonProcessingException {
		return getOpenApiResourceOrThrow(group).openapiYaml(request, apiDocsUrl + DEFAULT_PATH_SEPARATOR + group, locale);
	}
Openapi yaml string.

@param request    the request
@param apiDocsUrl the api docs url
@param group      the group
@param locale     the locale
@return the string
@throws JsonProcessingException the json processing exception
springdoc-openapi-starter-webmvc-api/src/main/java/org/springdoc/webmvc/api/MultipleOpenApiWebMvcResource.java