* satisify lint    * stub document for undocumented class and methods    * correct use of `undefined`    * remove use of `var`    * remove unused `const self = this;` assignment    * spacing violations * promote metric list so it is only created ONCE not for each individual graph * extract variable datapoint collector to a private method
* satisify lint
   * stub document for undocumented class and methods
   * correct use of `undefined`
   * remove use of `var`
   * remove unused `const self = this;` assignment
   * spacing violations
* promote metric list so it is only created ONCE not for each individual
graph
* extract variable datapoint collector to a private method

maier/circonus-one-step-install,circonus-labs/circonus-one-step-install,circonus-labs/circonus-one-step-install,circonus-labs/circonus-one-step-install,maier/circonus-one-step-install,maier/circonus-one-step-install