class Hash

# File lib/jekyll-aplayer/cores/extend.rb, line 37
def without!(*keys)
  keys.each { |key| self.delete(key) }
end

# File lib/jekyll-aplayer/cores/extend.rb, line 31
def without?(*keys)
  cpy = self.dup
  keys.each { |key| cpy.delete(key) }
  cpy
end