documentation/_metadata_service_interface_8php_source.html

 <?php
 namespace Magento\Framework\Api;

 interface MetadataServiceInterface
 {
     public function getCustomAttributesMetadata($dataObjectClassName = null);
 }
Magento\Framework\Api
Definition: AbstractExtensibleObject.php:6

Magento\Framework\Api\MetadataServiceInterface
Definition: MetadataServiceInterface.php:15

Magento\Framework\Api\MetadataServiceInterface\getCustomAttributesMetadata
getCustomAttributesMetadata($dataObjectClassName=null)