public GroupedOpenApi addAllOpenApiCustomizer(Collection<? extends OpenApiCustomizer> openApiCustomizerCollection) {
		Set<OpenApiCustomizer> result = new LinkedHashSet<>();
		result.addAll(openApiCustomizerCollection);
		result.addAll(openApiCustomizers);
		openApiCustomizers = result;
		return this;
	}
Add all open api customizer grouped open api.

@param openApiCustomizerCollection the open api customizer collection
@return the grouped open api
springdoc-openapi-starter-common/src/main/java/org/springdoc/core/models/GroupedOpenApi.java