QGIS/resources/function_help/json/attributes

{
  "name": "attributes",
  "type": "function",
  "groups": ["Record and Attributes"],
  "description": "Returns a map containing all attributes from a feature, with field names as map keys.",
  "variants": [
    { "variant": "Variant 1",
        "variant_description": "Returns a map of all attributes from the current feature.",
        "examples": [ { "expression":"attributes()['name']", "returns":"value stored in 'name' attribute for the current feature"}] },
    { "variant": "Variant 2",
        "variant_description": "Allows the target feature to be specified.",
        "arguments": [ {"arg":"feature","description":"a feature"}],
        "examples": [ { "expression":"attributes( @atlas_feature )['name']", "returns":"value stored in 'name' attribute for the current atlas feature"}] }
   ]
}