lib.aether.base
aether
added in 3.0
(aether)(aether config)creates an Aether object
(aether) => (contains-in {:repositories (contains {:id “clojars”, :type “default”, :url “https://clojars.org/repo”} {:id “central”, :type “default”, :url “https://repo1.maven.org/maven2/”} :in-any-order :gaps-ok), :system org.eclipse.aether.RepositorySystem :session org.eclipse.aether.RepositorySystemSession})