def set_variable(name, value)
      current_path = '/api/v1/variables'
      payload = { 'name' => name, 'value' => value }.to_json
      @conn.put(current_path, payload)
    end
def set_variable(name, value)
      current_path = '/api/v1/variables'
      payload = { 'name' => name, 'value' => value }.to_json
      @conn.put(current_path, payload)
    end
Sets the key and value of a variable.