pub fn textproto_to_binary(text: &str) -> Result<Vec<u8>, LoaderError>Expand description
Convert an ONNX protobuf TextFormat (.textproto) document into the
binary protobuf wire encoding of a ModelProto.
Parsing is descriptor-driven from the exact vendored ONNX schema (via
FILE_DESCRIPTOR_SET), so every bound message, field, oneof, and enum is
covered — the same source of truth used to generate the prost types. The
returned bytes are byte-for-byte loadable by decode_model and the
weight/graph build path, so a textproto fixture flows through the identical
binary-decode pipeline as a real .onnx model.
Because this yields a self-contained binary buffer with no model-directory
context, textproto fixtures must inline all weights (no external
.onnx.data).