{
  "name": "file_path",
  "type": "function",
  "description": "Returns the directory component of a file path. This does not include the file name.",
  "arguments": [ {"arg":"path","description":"a file path"}],
  "examples": [ { "expression":"file_path('/home/qgis/data/country_boundaries.shp')", "returns":"'/home/qgis/data'"}]
}