Function GET:::make_envelope_object() (Myllymäki and Mrkvička 2024, v1.0.7) creates a global-envelop, i.e., an R object of S3 class 'global_envelope'. Listing 23.1 summarizes the S3 methods for the class 'global_envelope' in package GET (v1.0.7),
Package groupedHyperframe (v0.3.2.20251225) does not implement any S3 method to the class 'global_envelope'.
Myllymäki, Mari, and Tomáš Mrkvička. 2024.
“GET: Global Envelopes in R.” Journal of Statistical Software 111 (3): 1–40.
https://doi.org/10.18637/jss.v111.i03.