def dissociate_gateway(resource_group_name, server_name, custom_headers:nil)
      response = dissociate_gateway_async(resource_group_name, server_name, custom_headers:custom_headers).value!
      nil
    end
def dissociate_gateway(resource_group_name, server_name, custom_headers:nil)
      response = dissociate_gateway_async(resource_group_name, server_name, custom_headers:custom_headers).value!
      nil
    end
Dissociates a Unified Gateway associated with the server.

 @param resource_group_name [String] The name of the Azure Resource group of
 which a given Analysis Services server is part. This name must be at least 1
 character in length, and no more than 90.
 @param server_name [String] The name of the Analysis Services server. It must
 be at least 3 characters in length, and no more than 63.
 @param custom_headers [Hash{String => String}] A hash of custom headers that
 will be added to the HTTP request.