{
  "name": "is_layer_visible",
  "type": "function",
  "groups": ["General"],
  "description": "Returns TRUE if a specified layer is visible.",
  "arguments": [{
    "arg": "layer",
    "description": "a string, representing either a layer name or layer ID"
  }],
  "examples": [{
    "expression": "is_layer_visible('baseraster')",
    "returns": "TRUE"
  }],
  "tags": ["specified", "visible"]
}