docs: function(apiId, swaggerPath) {
          return new Promise(function(resolve, reject) {
              fs.readFile(swaggerPath, function(err, data) {
                  if (err) return reject(err);
                  
                  resolve(APIG.putRestApi({
                      restApiId: apiId,
                      body: data,
                      mode: 'overwrite'
                  }).promise());
              });
          });
      }