class Net::IMAP::Config

def load_defaults(version)

See Config@Versioned+defaults and Config@Named+defaults.

is usually Config.global) and are left unchanged, for example: #debug.
Some config attributes default to inheriting from their #parent (which

configuration for +version+. #parent will not be changed.
Resets the current config to behave like the versioned default

:call-seq: load_defaults(version) -> self 
def load_defaults(version)
  [Numeric, Symbol, String].any? { _1 === version } or
    raise ArgumentError, "expected number or symbol, got %p" % [version]
  update(**Config[version].defaults_hash)
end