{
  "name": "file_name",
  "type": "function",
  "description": "Returns the name of a file (including the file extension), excluding the directory.",
  "arguments": [ {"arg":"path","description":"a file path"}],
  "examples": [ { "expression":"base_file_name('/home/qgis/data/country_boundaries.shp')", "returns":"'country_boundaries.shp'"}]
}