{
  "name": "exif",
  "type": "function",
  "groups": ["Files and Paths"],
  "description": "Retrieves exif tag values from an image file.",
  "arguments": [{
    "arg": "path",
    "description": "An image file path or a map layer value. If a map layer value is specified then the file source of the layer will be used."
  }, {
    "arg": "tag",
    "optional": true,
    "description": "The tag to return. If empty, a map with all exif tag values will be returned."
  }],
  "examples": [{
    "expression": "exif('/my/photo.jpg','Exif.Image.Orientation')",
    "returns": "0"
  }],
  "tags": ["exif", "retrieves", "tag", "file", "image", "values"]
}