class WIN32OLE::Record: Record+ objects represents VT_RECORD OLE variant. Record object if the result value of invoking OLE methods.

class URI::Generic: Base class for all URI classes. Implements generic URI syntax as per RFC 2396.

class TrueClass: The class of the singleton object +true+.

class Resolv::LOC::Coord: A Resolv::LOC::Coord

class Thread::Backtrace: An internal representation of the backtrace. The user will never interact with objects of this class directly, but class methods can be used to get ba

class StopIteration: Raised to stop the iteration, in particular by Enumerator#next. It is rescued by Kernel#loop.

class URI::InvalidURIError: Not a URI.

class URI::File: The "file" URI is defined by RFC8089.

class Socket::AncillaryData: AncillaryData represents the ancillary data (control information) used by sendmsg and recvmsg system call. It contains socket #family, control message

Documentation for the IRB::Command::Base class