By default, only instances of Hash itself are extractable. Subclasses of Hash may implement this method and return true to declare themselves as extractable. If a Hash is extractable, Array#extract_options! pops it from the Array when it is the last element of the Array.
# File lib/whois/core_ext/array/extract_options.rb, line 7 def extractable_options? instance_of?(Hash) end
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