code: @Override
  	public CommerceShippingMethod fetchByG_E(long groupId, String engineKey) {
  		return fetchByG_E(groupId, engineKey, true);
  	}
docs: Returns the commerce shipping method where groupId = &#63; and engineKey = &#63; or returns <code>null</code> if it could not be found. Uses the finder cache.
  
  @param groupId the group ID
  @param engineKey the engine key
  @return the matching commerce shipping method, or <code>null</code> if a matching commerce shipping method could not be found