Rule 7.1 of the Federal Rules of Civil Procedure has long required each “nongovernmental corporate party” to file a disclosure statement when that party takes its first action in a federal court lawsuit. Effective, December 1, 2022, however, the rule was amended to require that when a case that is in federal court because of diversity jurisdiction is filed or removed, each “party or intervenor” must file a disclosure statement that provides the “name—and identif[ies] the citizenship of—every individual or entity whose citizenship is attributed to that party or intervenor.”