code: function Falcon(options) {
      debug('constructor', options)
      options = options || {}
  
      this._lock = false
      this._queue = []
      this._increment = {}
  
      // step trigger autoFlush
      this.step(options.step === undefined ? Falcon.DEFAULT_STEP : options.step)
      if (Falcon.PROJECT) {
          this.tag('project', Falcon.PROJECT)
      }
      this._handler = options.handler || Falcon.DEFAULT_HANDLER
      if (options.tags) {
          this.tag(options.tags)
      }
  }
docs: var Falcon = require('open-falcon')
  Falcon.init('http://localhost:6060', 'exampleProject')
  
  var falcon1 = new Falcon({
  tags: 'tagkey=tagvalue',
  })
  
  falcon1
  .step(60)
  .tag('anotherkey', 'anothervalue')
  .gauge('metricName', 100)
  
  var falcon2 = new Falcon()
  falcon2.counter('metricName2', 20)
  
  var falcon3 = new Falcon()
  falcon3
  .step(20)
  .increment('incrementMetric1')
  .increment('incrementMetric2')
   
  options
  step: optional, integer, seconds, default 60
  tags: optional