def begin_delete(resource_group_name, namespace_name, custom_headers:nil)
      response = begin_delete_async(resource_group_name, namespace_name, custom_headers:custom_headers).value!
      nil
    end
def begin_delete(resource_group_name, namespace_name, custom_headers:nil)
      response = begin_delete_async(resource_group_name, namespace_name, custom_headers:custom_headers).value!
      nil
    end
Deletes an existing namespace. This operation also removes all associated
 resources under the namespace.

 @param resource_group_name [String] Name of the Resource group within the
 Azure subscription.
 @param namespace_name [String] The namespace name
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.