Returns true if there are any authors for the feed or any of the Entry child elements have an author
Returns where there are any authors present or there is a source with an author
Update RubyGems software to the latest version.
Verifies that data matches the signature created by public_key and the digest algorithm.
Updates the TarHeader’s checksum
Indicate if this activation is one of a set of possible requests for the same Dependency request.
Does this dependency request match spec?
NOTE: matches_spec? matches prerelease versions. See also match?
Returns true if this gem is installable for the current platform.
Returns true if this gem is installable for the current platform.
Returns true if this specification is installable on this platform.