src/Services/AttributeBunchProcessor.php
public function loadEntityAttributeByEntityTypeIdAndAttributeIdAndAttributeSetIdAndAttributeGroupId($entityTypeId, $attributeId, $attributeSetId, $attributeGroupId)
    {
        return $this->getEntityAttributeRepository()->findOneByEntityTypeIdAndAttributeIdAndAttributeSetIdAndAttributeGroupId($entityTypeId, $attributeId, $attributeSetId, $attributeGroupId);
    }
public function loadEntityAttributeByEntityTypeIdAndAttributeIdAndAttributeSetIdAndAttributeGroupId($entityTypeId, $attributeId, $attributeSetId, $attributeGroupId)
    {
        return $this->getEntityAttributeRepository()->findOneByEntityTypeIdAndAttributeIdAndAttributeSetIdAndAttributeGroupId($entityTypeId, $attributeId, $attributeSetId, $attributeGroupId);
    }
Return's the EAV entity attribute with the passed entity type, attribute, attribute set and attribute group ID.

@param integer $entityTypeId     The ID of the EAV entity attribute's entity type to return
@param integer $attributeId      The ID of the EAV entity attribute's attribute to return
@param integer $attributeSetId   The ID of the EAV entity attribute's attribute set to return
@param integer $attributeGroupId The ID of the EAV entity attribute's attribute group to return

@return array The EAV entity attribute