via stackoverflow.com/a/25835016/2257038.
via stackoverflow.com/a/25835016/2257038
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# File 'lib/livekit/utils.rb', line 6 def stringify_keys h = self.map do |k, v| v_str = if v.instance_of? Hash v.stringify_keys else v end [k.to_s, v_str] end Hash[h] end