{
  "name": "convex_hull",
  "type": "function",
  "groups": ["GeometryGroup"],
  "description": "Returns the convex hull of a geometry. It represents the minimum convex geometry that encloses all geometries within the set.",
  "arguments": [{
    "arg": "geometry",
    "description": "a geometry"
  }],
  "examples": [{
    "expression": "geom_to_wkt( convex_hull( geom_from_wkt( 'LINESTRING(3 3, 4 4, 4 10)' ) ) )",
    "returns": "'POLYGON((3 3, 4 10, 4 4, 3 3))'"
  }],
  "tags": ["hull", "convex", "minimum", "represents", "encloses", "set"]
}