{
"title": "h5writeatt",
"category": "io/hdf5",
"keywords": ["h5writeatt", "hdf5", "attribute", "dataset", "group", "file", "io"],
"summary": "Write an HDF5 attribute on a file, group, or dataset.",
"gpu_support": {"elementwise": false, "reduction": false, "precisions": [], "broadcasting": "none", "notes": "Attribute writes are host file I/O."},
"fusion": {"elementwise": false, "reduction": false, "max_inputs": 0, "constants": "inline"},
"requires_feature": null,
"tested": {"unit": "builtins::io::hdf5::tests::h5writeatt_h5info_and_h5disp_report_metadata", "integration": null},
"description": "`h5writeatt(filename, location, attribute, data)` creates or replaces an attribute.",
"behaviors": ["Supports numeric, logical, string, and char attributes.", "Unsupported value classes raise deterministic unsupported-type errors."],
"source": {"label": "`crates/runmat-runtime/src/builtins/io/hdf5.rs`", "url": "https://github.com/runmat-org/runmat/blob/main/crates/runmat-runtime/src/builtins/io/hdf5.rs"}
}