constmutex=require('dynamodb-mutex');letconfig={region: 'REGION',accessKeyId: 'ACCESS_KEY_ID',accessKey: 'ACCESS_KEY',retryInterval: INTERVAL_TIME,maxTries: 3,tableName: 'TABLE_NAME'readCapacityUnits: 5,// Default 1,writeCapacityUnits: 5,// Default 1};lettimeout=2000;constsampleMutex=newmutex(config);sampleMutex.lock('keyName',timeout,(err,unlock)=>{if(err){console.log('Lock failed')}else{// DO AWESOME STUFF HEREunlock();}}); ## LicenseMIT