{
  "name": "y",
  "type": "function",
  "description": "Returns the y coordinate of a point geometry, or the y-coordinate of the centroid for a non-point geometry.",
  "arguments": [ {"arg":"geom","description":"a geometry"}],
  "examples": [ { "expression":"y( geom_from_wkt( 'POINT(2 5)' ) )", "returns":"5"}
  ]
}