def unregister(resource_provider_namespace, custom_headers:nil)
      response = unregister_async(resource_provider_namespace, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
def unregister(resource_provider_namespace, custom_headers:nil)
      response = unregister_async(resource_provider_namespace, custom_headers:custom_headers).value!
      response.body unless response.nil?
    end
Unregisters provider from a subscription.

 @param resource_provider_namespace [String] Namespace of the resource
 provider.
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.

 @return [Provider] operation results.