# File lib/seamless_database_pool.rb, line 133
    def master_database_configuration(database_configs)
      configs = {}
      database_configs.each do |key, values|
        if values['adapter'] == 'seamless_database_pool'
          values['adapter'] = values.delete('pool_adapter')
          values = values.merge(values['master']) if values['master'].is_a?(Hash)
          values.delete('pool_weight')
          values.delete('master')
          values.delete('read_pool')
        end
        configs[key] = values
      end
      configs
    end