class Karafka::Routing::Proxy

def method_missing(method_name, *arguments, &block)

Translates the no "=" DSL of routing into elements assignments on target 
def method_missing(method_name, *arguments, &block)
  return super unless respond_to_missing?(method_name)
  @target.public_send(:"#{method_name}=", *arguments, &block)
end