OptionalhasMIndicates whether the geometry contains M coordinate values.
OptionalhasZIndicates whether the geometry contains Z coordinate values.
Three nested arrays which corresponds to a polyline.
OptionalspatialThe spatial reference can be defined using a well-known ID (WKID) or well-known text (WKT).
Contains an array of paths and a spatialReference. See https://developers.arcgis.com/web-map-specification/objects/polyline_geometry/ https://developers.arcgis.com/web-scene-specification/objects/polyline_geometry/.