Function architecture_model 

pub fn architecture_model(
    unit_sources: &HashMap<String, Vec<PathBuf>>,
    snapshots: &HashMap<PathBuf, String>,
    sequence_info: &HashMap<String, ContextSequenceInfo>,
) -> ArchModel

Build the whole-project architecture model.

unit_sources and snapshots are Analysis/ProjectDiagnostics’s own fields (project-relative file lists per unit, and each file’s committed text); sequence_info is the same table bynk/sequenceModel classifies against. A unit with no sequence_info entry (a commons, or the toolchain’s synthetic bynk capability surface — excluded from unit_sources, per its own doc) contributes no node; a consumes edge that resolves to such a unit is dropped (nothing to draw an arrow to) but its selected capabilities are still recorded on the consuming node — see the module doc.