History of schemas 4 changes

In crates/hub-api/src/lib.rs, lines 635–687 on 78001759604c0562572336e3c43ee8983937c1a806c588add07e660bc402a00f. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 635,687:crates/hub-api/src/lib.rs.