Make all C++ archetypes eager serialized & provide generated update/clear APIs

.vscode/launch.json

@@ -176,5 +176,18 @@
                 "RAYON_NUM_THREADS": "1" // less confusing debugging experience
             }
         },
+        {
+            "name": "(Windows) Launch & debug C++ snippet",
+            "type": "cppvsdbg",
+            "request": "launch",
+            "program": "${workspaceFolder}/build/debug/docs/snippets/video_auto_frames.exe",
+            "args": [
+                "${workspaceFolder}/tests/assets/video/Big_Buck_Bunny_1080_10s_av1.mp4"
+            ],
+            "stopAtEntry": false,
+            "cwd": "${fileDirname}",
+            "environment": [],
+            "console": "externalTerminal"
+        },
     ]
 }

crates/build/re_types_builder/src/codegen/cpp/mod.rs

@@ -16,8 +16,8 @@ use crate::{
     format_path,
     objects::ObjectClass,
     ArrowRegistry, Docs, ElementType, GeneratedFiles, Object, ObjectField, ObjectKind, Objects,
-    Reporter, Type, ATTR_CPP_ARCHETYPE_EAGER, ATTR_CPP_NO_FIELD_CTORS, ATTR_CPP_RENAME_FIELD,
-    ATTR_RERUN_LOG_MISSING_AS_EMPTY,
+    Reporter, Type, ATTR_CPP_ARCHETYPE_EAGER, ATTR_CPP_NO_DEFAULT_CTOR, ATTR_CPP_NO_FIELD_CTORS,
+    ATTR_CPP_RENAME_FIELD, ATTR_RERUN_LOG_MISSING_AS_EMPTY,
 };
 
 use self::array_builder::{arrow_array_builder_type, arrow_array_builder_type_object};
@@ -710,6 +710,12 @@ impl QuotedObject {
                 obj.deprecation_notice().is_some() || has_any_deprecated_fields,
             );
 
+        let default_ctor = if obj.is_attr_set(ATTR_CPP_NO_DEFAULT_CTOR) {
+            quote! {}
+        } else {
+            quote! { #type_ident() = default; }
+        };
+
         // Note that we run into "rule of five": https://en.cppreference.com/w/cpp/language/rule_of_three
         // * we have to manually opt-in to default ctor because we (most of the time) have a user defined constructor
         //   -> this means that there's no non-move constructors/assignments
@@ -743,7 +749,7 @@ impl QuotedObject {
                     #hpp_type_extensions
 
                 public:
-                    #type_ident() = default;
+                    #default_ctor
                     #type_ident(#type_ident&& other) = default;
                     #type_ident(const #type_ident& other) = default;
                     #type_ident& operator=(const #type_ident& other) = default;

crates/build/re_types_builder/src/lib.rs

@@ -195,6 +195,7 @@ pub const ATTR_PYTHON_ALIASES: &str = "attr.python.aliases";
 pub const ATTR_PYTHON_ARRAY_ALIASES: &str = "attr.python.array_aliases";
 
 pub const ATTR_CPP_ARCHETYPE_EAGER: &str = "attr.cpp.archetype_eager";
+pub const ATTR_CPP_NO_DEFAULT_CTOR: &str = "attr.cpp.no_default_ctor";
 pub const ATTR_CPP_NO_FIELD_CTORS: &str = "attr.cpp.no_field_ctors";
 pub const ATTR_CPP_RENAME_FIELD: &str = "attr.cpp.rename_field";
 

crates/store/re_types/definitions/attributes/cpp.fbs

@@ -3,6 +3,11 @@ namespace cpp.attributes;
 /// Don't emit parameterized constructors for fields, only copy, move and default constructors.
 attribute "attr.cpp.no_field_ctors";
 
+/// Don't emit default constructor, only copy and move.
+///
+/// This requires a custom default constructor in the extensions.
+attribute "attr.cpp.no_default_ctor";
+
 /// Changes the name of a field in the generated C++ code.
 /// This can be used to avoid name clashes with C++ keywords or methods.
 attribute "attr.cpp.rename_field";

crates/store/re_types/definitions/rerun/archetypes/asset3d.fbs

@@ -11,6 +11,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/asset3d_simple title="Simple 3D asset" image="https://static.rerun.io/asset3d_simple/af238578188d3fd0de3e330212120e2842a8ddb2/1200w.png"
 table Asset3D (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq, Eq",
   "attr.docs.category": "Spatial 3D",

crates/store/re_types/definitions/rerun/archetypes/asset_video.fbs

@@ -12,6 +12,7 @@ namespace rerun.archetypes;
 /// \example archetypes/video_auto_frames title="Video with automatically determined frames" image="https://static.rerun.io/video_manual_frames/320a44e1e06b8b3a3161ecbbeae3e04d1ccb9589/1200w.png"
 /// \example archetypes/video_manual_frames title="Demonstrates manual use of video frame references" image="https://static.rerun.io/video_manual_frames/9f41c00f84a98cc3f26875fba7c1d2fa2bad7151/1200w.png"
 table AssetVideo (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.docs.category": "Video",
   "attr.docs.view_types": "Spatial2DView, Spatial3DView: if logged under a projection"

crates/store/re_types/definitions/rerun/archetypes/bar_chart.fbs

@@ -8,6 +8,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/bar_chart title="Simple bar chart" image="https://static.rerun.io/barchart_simple/cf6014b18265edfcaa562c06526c0716b296b193/1200w.png"
 table BarChart (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Plotting",

crates/store/re_types/definitions/rerun/archetypes/boxes2d.fbs

@@ -6,6 +6,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/boxes2d_simple title="Simple 2D boxes" image="https://static.rerun.io/box2d_simple/ac4424f3cf747382867649610cbd749c45b2020b/1200w.png"
 table Boxes2D (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.new_pub_crate",

crates/store/re_types/definitions/rerun/archetypes/boxes3d.fbs

@@ -11,6 +11,7 @@ namespace rerun.archetypes;
 /// \example archetypes/boxes3d_simple !api title="Simple 3D boxes" image="https://static.rerun.io/box3d_simple/d6a3f38d2e3360fbacac52bb43e44762635be9c8/1200w.png"
 /// \example archetypes/boxes3d_batch title="Batch of 3D boxes" image="https://static.rerun.io/box3d_batch/5aac5b5d29c9f2ecd572c93f6970fcec17f4984b/1200w.png"
 table Boxes3D (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.new_pub_crate",

crates/store/re_types/definitions/rerun/archetypes/capsules3d.fbs

@@ -14,6 +14,7 @@ namespace rerun.archetypes;
 // TODO(#1361): This archetype should eventually generalize to cylinders without caps, truncated
 // cones, and tapered capsules -- all common shapes based on expanding a line segment circularly.
 table Capsules3D (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.new_pub_crate",

crates/store/re_types/definitions/rerun/archetypes/clear.fbs

@@ -17,6 +17,8 @@ namespace rerun.archetypes;
 /// \example archetypes/clear_simple title="Flat" image="https://static.rerun.io/clear_simple/2f5df95fcc53e9f0552f65670aef7f94830c5c1a/1200w.png"
 /// \example archetypes/clear_recursive !api "Recursive"
 table Clear (
+  "attr.cpp.no_default_ctor",
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.override_crate": "re_types_core",

crates/store/re_types/definitions/rerun/archetypes/depth_image.fbs

@@ -12,6 +12,7 @@ namespace rerun.archetypes;
 /// \example archetypes/depth_image_simple !api title="Simple example" image="https://static.rerun.io/depth_image_simple/77a6fa4f938a742bdc7c5350f668c4f31eed4d01/1200w.png"
 /// \example archetypes/depth_image_3d title="Depth to 3D example" image="https://static.rerun.io/depth_image_3d/924e9d4d6a39d63d4fdece82582855fdaa62d15e/1200w.png"
 table DepthImage (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.cpp.no_field_ctors",

crates/store/re_types/definitions/rerun/archetypes/ellipsoids3d.fbs

@@ -14,6 +14,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/ellipsoids3d_simple title="Covariance ellipsoid" image="https://static.rerun.io/elliopsoid3d_simple/bd5d46e61b80ae44792b52ee07d750a7137002ea/1200w.png"
 table Ellipsoids3D (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.new_pub_crate",

crates/store/re_types/definitions/rerun/archetypes/encoded_image.fbs

@@ -10,6 +10,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/encoded_image
 table EncodedImage (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.cpp.no_field_ctors",
   "attr.docs.category": "Image & tensor",

crates/store/re_types/definitions/rerun/archetypes/geo_line_strings.fbs

@@ -8,6 +8,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/geo_line_strings_simple title="Log a geospatial line string" image="https://static.rerun.io/geo_line_strings_simple/5669983eb10906ace303755b5b5039cad75b917f/1200w.png"
 table GeoLineStrings (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.new_pub_crate",

crates/store/re_types/definitions/rerun/archetypes/geo_points.fbs

@@ -4,6 +4,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/geo_points_simple title="Log a geospatial point" image="https://static.rerun.io/geopoint_simple/b86ce83e5871837587bd33a0ad639358b96e9010/1200w.png"
 table GeoPoints (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.rust.new_pub_crate",

crates/store/re_types/definitions/rerun/archetypes/graph_edges.fbs

@@ -9,6 +9,7 @@ namespace rerun.archetypes;
 /// \example archetypes/graph_undirected !api title="Simple undirected graph" image="https://static.rerun.io/graph_undirected/15f46bec77452a8c6220558e4403b99cac188e2e/1200w.png"
 /// \example archetypes/graph_directed title="Simple directed graph" image="https://static.rerun.io/graph_directed/ca29a37b65e1e0b6482251dce401982a0bc568fa/1200w.png"
 table GraphEdges (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.docs.category": "Graph",
   "attr.docs.view_types": "GraphView",

crates/store/re_types/definitions/rerun/archetypes/graph_nodes.fbs

@@ -7,6 +7,7 @@ namespace rerun.archetypes;
 /// \example archetypes/graph_undirected !api title="Simple undirected graph" image="https://static.rerun.io/graph_undirected/15f46bec77452a8c6220558e4403b99cac188e2e/1200w.png"
 /// \example archetypes/graph_directed title="Simple directed graph" image="https://static.rerun.io/graph_directed/ca29a37b65e1e0b6482251dce401982a0bc568fa/1200w.png"
 table GraphNodes (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.docs.category": "Graph",
   "attr.docs.view_types": "GraphView",

crates/store/re_types/definitions/rerun/archetypes/image.fbs

@@ -24,6 +24,7 @@ namespace rerun.archetypes;
 /// \example archetypes/image_formats title="Logging images with various formats" image="https://static.rerun.io/image_formats/7b8a162fcfd266f303980439beea997dc8544c24/full.png"
 /// \example archetypes/image_send_columns !api title="Image from file, PIL & OpenCV" image="https://static.rerun.io/image_advanced/81fc8a255488615510790ee41be314e054978d51/full.png"
 table Image (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.cpp.no_field_ctors",

crates/store/re_types/definitions/rerun/archetypes/instance_poses3d.fbs

@@ -19,6 +19,7 @@ namespace rerun.archetypes;
 /// \example archetypes/instance_poses3d_combined title="Regular & instance transforms in tandem" image="https://static.rerun.io/leaf_transform3d/41674f0082d6de489f8a1cd1583f60f6b5820ddf/1200w.png"
 /// \example archetypes/mesh3d_instancing !api title="3D mesh with instancing" image="https://static.rerun.io/mesh3d_leaf_transforms3d/c2d0ee033129da53168f5705625a9b033f3a3d61/1200w.png"
 table InstancePoses3D (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.docs.category": "Spatial 3D",
   "attr.docs.view_types": "Spatial3DView, Spatial2DView: if logged above active projection",

crates/store/re_types/definitions/rerun/archetypes/line_strips2d.fbs

@@ -9,7 +9,8 @@ namespace rerun.archetypes;
 /// \example archetypes/line_strips2d_batch image="https://static.rerun.io/line_strip2d_batch/c6f4062bcf510462d298a5dfe9fdbe87c754acee/1200w.png"
 /// \example archetypes/line_strips2d_ui_radius title="Lines with scene & UI radius each" image="https://static.rerun.io/line_strip2d_ui_radius/d3d7d5bd36278564ee37e2ed6932963ec16f5131/1200w.png
 table LineStrips2D (
-  "attr.rust.archetype_eager": "",
+  "attr.cpp.archetype_eager",
+  "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Spatial 2D",
   "attr.docs.view_types": "Spatial2DView, Spatial3DView: if logged under a projection"

crates/store/re_types/definitions/rerun/archetypes/line_strips3d.fbs

@@ -9,7 +9,8 @@ namespace rerun.archetypes;
 /// \example archetypes/line_strips3d_batch title="Many strips" image="https://static.rerun.io/line_strip3d_batch/15e8ff18a6c95a3191acb0eae6eb04adea3b4874/1200w.png"
 /// \example archetypes/line_strips3d_ui_radius title="Lines with scene & UI radius each" image="https://static.rerun.io/line_strip3d_ui_radius/36b98f47e45747b5a3601511ff39b8d74c61d120/1200w.png"
 table LineStrips3D (
-  "attr.rust.archetype_eager": "",
+  "attr.cpp.archetype_eager",
+  "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Spatial 3D",
   "attr.docs.view_types": "Spatial3DView, Spatial2DView: if logged above active projection"

crates/store/re_types/definitions/rerun/archetypes/mesh3d.fbs

@@ -13,6 +13,7 @@ namespace rerun.archetypes;
 /// \example archetypes/mesh3d_partial_updates !api title="3D mesh with partial updates" image="https://static.rerun.io/mesh3d_partial_updates/7de33d26220585691a403098c953cd46f94c3262/1200w.png"
 /// \example archetypes/mesh3d_instancing title="3D mesh with instancing" image="https://static.rerun.io/mesh3d_leaf_transforms3d/c2d0ee033129da53168f5705625a9b033f3a3d61/1200w.png"
 table Mesh3D (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Spatial 3D",

crates/store/re_types/definitions/rerun/archetypes/pinhole.fbs

@@ -6,6 +6,7 @@ namespace rerun.archetypes;
 /// \example archetypes/pinhole_simple title="Simple pinhole camera" image="https://static.rerun.io/pinhole_simple/9af9441a94bcd9fd54e1fea44fb0c59ff381a7f2/1200w.png"
 /// \example archetypes/pinhole_perspective title="Perspective pinhole camera" image="https://static.rerun.io/pinhole_perspective/317e2de6d212b238dcdad5b67037e9e2a2afafa0/1200w.png"
 table Pinhole (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager"
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Spatial 3D",

crates/store/re_types/definitions/rerun/archetypes/points2d.fbs

@@ -10,6 +10,7 @@ namespace rerun.archetypes;
 /// \example archetypes/points2d_random title="Randomly distributed 2D points with varying color and radius" image="https://static.rerun.io/point2d_random/8e8ac75373677bd72bd3f56a15e44fcab309a168/1200w.png"
 /// \example archetypes/points2d_ui_radius title="Log points with radii given in UI points" image="https://static.rerun.io/point2d_ui_radius/ce804fc77300d89c348b4ab5960395171497b7ac/1200w.png"
 table Points2D (
+   "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Spatial 2D",

crates/store/re_types/definitions/rerun/archetypes/scalar.fbs

@@ -16,6 +16,7 @@ namespace rerun.archetypes;
 /// \example archetypes/scalar_multiple_plots !api title="Multiple time series plots" image="https://static.rerun.io/scalar_multiple/15845c2a348f875248fbd694e03eabd922741c4c/1200w.png"
 /// \example archetypes/scalar_send_columns title="Multiple scalars in a single `send_columns` call" image="https://static.rerun.io/scalar_send_columns/b4bf172256f521f4851dfec5c2c6e3143f5d6923/1200w.png"
 table Scalar (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Plotting",

crates/store/re_types/definitions/rerun/archetypes/segmentation_image.fbs

@@ -16,6 +16,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/segmentation_image_simple title="Simple segmentation image" image="https://static.rerun.io/segmentation_image_simple/f8aac62abcf4c59c5d62f9ebc2d86fd0285c1736/1200w.png"
 table SegmentationImage (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.cpp.no_field_ctors",

crates/store/re_types/definitions/rerun/archetypes/series_line.fbs

@@ -10,7 +10,8 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/series_line_style title="Line series" image="https://static.rerun.io/series_line_style/d2616d98b1e46bdb85849b8669154fdf058e3453/1200w.png"
 table SeriesLine (
-  "attr.rust.archetype_eager",
+    "attr.cpp.archetype_eager",
+    "attr.rust.archetype_eager",
     "attr.docs.category": "Plotting",
     "attr.docs.view_types": "TimeSeriesView"
 ) {

crates/store/re_types/definitions/rerun/archetypes/series_point.fbs

@@ -10,7 +10,8 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/series_point_style title="Point series" image="https://static.rerun.io/series_point_style/82207a705da6c086b28ce161db1db9e8b12258b7/1200w.png"
 table SeriesPoint (
-  "attr.rust.archetype_eager",
+    "attr.cpp.archetype_eager",
+    "attr.rust.archetype_eager",
     "attr.docs.category": "Plotting",
     "attr.docs.view_types": "TimeSeriesView"
 ) {

crates/store/re_types/definitions/rerun/archetypes/tensor.fbs

@@ -13,6 +13,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/tensor_simple title="Simple tensor" image="https://static.rerun.io/tensor_simple/baacb07712f7b706e3c80e696f70616c6c20b367/1200w.png"
 table Tensor (
+"attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Image & tensor",

crates/store/re_types/definitions/rerun/archetypes/text_document.fbs

@@ -8,6 +8,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/text_document title="Markdown text document" image="https://static.rerun.io/textdocument/babda19558ee32ed8d730495b595aee7a5e2c174/1200w.png"
 table TextDocument (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Text",

crates/store/re_types/definitions/rerun/archetypes/text_log.fbs

@@ -6,6 +6,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/text_log_integration text="Logging text directly or via a logger" image="https://static.rerun.io/text_log_integration/9737d0c986325802a9885499d6fcc773b1736488/1200w.png"
 table TextLog (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.rust.derive": "PartialEq",
   "attr.docs.category": "Text",

crates/store/re_types/definitions/rerun/archetypes/video_frame_reference.fbs

@@ -10,6 +10,7 @@ namespace rerun.archetypes;
 /// \example archetypes/video_auto_frames title="Video with automatically determined frames" image="https://static.rerun.io/video_manual_frames/320a44e1e06b8b3a3161ecbbeae3e04d1ccb9589/1200w.png"
 /// \example archetypes/video_manual_frames title="Demonstrates manual use of video frame references" image="https://static.rerun.io/video_manual_frames/9f41c00f84a98cc3f26875fba7c1d2fa2bad7151/1200w.png"
 table VideoFrameReference (
+  "attr.cpp.archetype_eager",
   "attr.rust.archetype_eager",
   "attr.docs.category": "Video",
   "attr.docs.view_types": "Spatial2DView, Spatial3DView: if logged under a projection"

crates/store/re_types/definitions/rerun/archetypes/view_coordinates.fbs

@@ -17,6 +17,7 @@ namespace rerun.archetypes;
 ///
 /// \example archetypes/view_coordinates_simple title="View coordinates for adjusting the eye camera" image="https://static.rerun.io/viewcoordinates/0833f0dc8616a676b7b2c566f2a6f613363680c5/1200w.png"
 table ViewCoordinates (
+  "attr.cpp.archetype_eager",
   // TODO(#7245): "attr.rust.archetype_eager",
   "attr.rust.derive": "Copy, PartialEq, Eq, bytemuck::Pod, bytemuck::Zeroable",
   "attr.rust.repr": "transparent",

docs/snippets/snippets.toml

@@ -206,7 +206,7 @@ quick_start = [ # These examples don't have exactly the same implementation.
   "py",
   "rust",
 ]
-"archetypes/mesh3d_partial_updates" = [
+"archetypes/mesh3d_partial_updates" = [ # TODO(andreas): use new partial update api
   "cpp",
   "py",
   "rust",
@@ -221,11 +221,8 @@ quick_start = [ # These examples don't have exactly the same implementation.
   "py",
   "rust",
 ]
-"archetypes/points3d_partial_updates" = [ # TODO(cmc): revert once C++ has tagged partial updates
-  "cpp",
-]
 "archetypes/points3d_send_columns" = [
-  "py", # TODO(#8752): needs tagged columnar APIs
+  "py",  # TODO(#8752): needs tagged columnar APIs
   "cpp", # TODO(#8754): needs tagged columnar APIs
 ]
 "archetypes/points3d_random" = [ # TODO(#3206): examples use different RNGs
@@ -237,7 +234,7 @@ quick_start = [ # These examples don't have exactly the same implementation.
   "cpp",
 ]
 "archetypes/scalar_send_columns" = [
-  "py", # TODO(#8752): needs tagged columnar APIs
+  "py",  # TODO(#8752): needs tagged columnar APIs
   "cpp", # TODO(#8754): needs tagged columnar APIs
 ]
 "archetypes/tensor_simple" = [ # TODO(#3206): examples use different RNGs