{
  "name": "array_contains",
  "type": "function",
  "description": "Returns true if an array contains the given value.",
  "arguments": [ {"arg":"array","description":"an array"},
                 {"arg":"value","description":"the value to search"}],
  "examples": [ { "expression":"array_contains(array(1,2,3),2)", "returns":"true"}]
}