{
  "name": "start_point",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Returns the first node from a geometry.",
  "arguments": [{
    "arg": "geometry",
    "description": "geometry object"
  }],
  "examples": [{
    "expression": "geom_to_wkt(start_point(geom_from_wkt('LINESTRING(4 0, 4 2, 0 2)')))",
    "returns": "'Point (4 0)'"
  }],
  "tags": ["first", "node"]
}