Static TYPE_COMPOSITE 

pub static TYPE_COMPOSITE: TypeNode

Concrete Composite - envelope holding N typed child payloads, each tagged with its source type_hash and bincode-encoded bytes. The DSL g.bundle recorder produces this on the output of a Bundle op; the matching Unbundle op decomposes it back into per-child BytesValue outputs whose ValueInfoProto.denotation is stamped from the declared child-type list. Parent is Any because a composite can wrap any wire-eligible child types.