{
  "name": "IS",
  "type": "operator",
  "description": "Returns 1 if a is the same as b.",
  "arguments": [
	{"arg":"a","description":"any value"},
	{"arg":"b","description":"any value"}
  ],
  "examples": [
	{ "expression":"'A' IS 'A'", "returns":"1"},
	{ "expression":"'A' IS 'a'", "returns":"0"},
	{ "expression":"4 IS 4", "returns":"1"},
	{ "expression":"4 IS 2+2", "returns":"1"},
	{ "expression":"4 IS 2", "returns":"0"},
	{ "expression":"$geometry IS NULL", "returns":"0, if your geometry is not NULL"}
  ]
}