A list of coordinates encoded as a string. See Encoded polyline algorithm format
| name | data type | constraints | description | 
|---|---|---|---|
| points | string | The encoded points of the polyline. | |
| levels | string | Levels describes which points should be shown at various zoom levels. Presently, we show all points at all zoom levels. | |
| length | number | required | The number of points in the string | 
Example
{
  "points" : "...",
  "levels" : "...",
  "length" : 12345
}