使用反序列化GeoJSON坐标数组Json.net

我有一个GeoJSON几何体,看起来像这样:

{
    "type":"Point",
    "coordinates":[-121.35753,38.49392]
}

我尝试过这两种类定义:

Public Class GeoJSONPoint
    Public Property type As String
    Public Property coordinates() As Double
End Class

Public Class GeoJSONPoint
    Public Property type As String
    Public Property coordinates as List(Of Double)
End Class

在我弄清楚点之后,我还需要弄清楚多重多边形,它是一个由数组组成的数组,看起来像这样:

{
    "type":"MultiPolygon",
    "coordinates":[[[[-118.718979785211,34.2749418860063],[-118.71897943847,34.2746561231818],[-118.719144944,34.2746560927904],[-118.719145294476,34.2749418391076],[-118.718979785211,34.2749418860063]]]]
}