code: public void deleteAtResourceGroupLevel(String resourceGroupName, String lockName) {
          deleteAtResourceGroupLevelWithServiceResponseAsync(resourceGroupName, lockName).toBlocking().single().body();
      }
docs: Deletes a management lock at the resource group level.
  To delete management locks, you must have access to Microsoft.Authorization/* or Microsoft.Authorization/locks/* actions. Of the built-in roles, only Owner and User Access Administrator are granted those actions.
  
  @param resourceGroupName The name of the resource group containing the lock.
  @param lockName The name of lock to delete.
  @throws IllegalArgumentException thrown if parameters fail the validation
  @throws CloudException thrown if the request is rejected by server
  @throws RuntimeException all other wrapped checked exceptions if the request fails to be sent