anchor.diff:  .request.json
   ----
   [
  -  {"timestamp:" 1460413065369, "value": 69},
  -  {"timestamp:" 1460413025569, "value": 65},
  -  {"timestamp:" 1460111065369, "value": 51}
  +  {"timestamp": 1460413065369, "value": 69},
  +  {"timestamp": 1460413025569, "value": 65},
  +  {"timestamp": 1460111065369, "value": 51}
   ]
   ----
   
  
positive.code: .Response with counter data points
  ----
  [
    {"timestamp:" 1460413065369, "value": 7},
    {"timestamp:" 1460212025569, "value": 11},
    {"timestamp:" 1460111065369, "value": 19}
  ]
  ----
  
  
negative.code: .Response with gauge data points
  ----
  [
    {"timestamp": 1460413065369, "value": 3.14},
    {"timestamp": 1460212025569, "value": 4.57},
    {"timestamp": 1460111065369, "value": 5.056}
  ]
  ----
  
  