text: /*
    Get the head of the responses linked list
  
    usage:
    node getHead ##REQUESTID##
  
    example:
    node getHead 0x147b833db65b9d9a4321ba3fa0f476265ebb178531de166477822204268f6d88
  */
  
  if(!process.argv[2]){
    console.log("Please provide a request id.")
    process.exit(1)
  }
  let requestId = process.argv[2];
  
  let concurrence = require("../concurrence.js")
  concurrence.init({},(err)=>{
    concurrence.getHead(requestId).then((head)=>{
      console.log(head)
    })
  });
  