Module env 

Environment constants grouped by domain (ck, NNS, SNS).

Modules

ck

List of Chain Fusion (ck) canisters. Source: https://dashboard.internetcomputer.org/chain-fusion

nns

List of NNS/system canisters. Source: https://internetcomputer.org/docs/references/system-canisters/

sns

Preconfigured SNS deployments and helpers for looking up their canisters.