anchor.diff:  
   + Response 400 (application/json)
   
  -        Returned if an invalid station shortcode is specified.
  -
  -        +Body
  +    Returned if an invalid station shortcode is specified.
  +
  +    +Body
           {
               status: "error",
               error: "Station not found."
  
positive.code: 
  + Response 400 (application/json)
  
          Returned if an invalid station ID is specified.
  
          +Body
          {
              status: "error",
              error: "Station not found."
  
negative.code: 
  + Response 400 (application/json)
  
      Returned if an invalid station ID is specified.
  
      +Body
          {
              status: "error",
              error: "Station not found."
  