def store_recipient_variables(recipient_type, address, variables)
      variables = { id: @counters[:recipients][recipient_type] } unless variables
      @recipient_variables[address] = variables
    end
def store_recipient_variables(recipient_type, address, variables)
      variables = { id: @counters[:recipients][recipient_type] } unless variables
      @recipient_variables[address] = variables
    end
This method stores recipient variables for each recipient added, if
 variables exist.