1GNU Lesser General Public License 2================================= 3 4_Version 3, 29 June 2007_ 5_Copyright © 2007 Free Software Foundation, Inc. <<http://fsf.org/>>_ 6 7Everyone is permitted to copy and distribute verbatim copies 8of this license document, but changing it is not allowed. 9 10 11This version of the GNU Lesser General Public License incorporates 12the terms and conditions of version 3 of the GNU General Public 13License, supplemented by the additional permissions listed below. 14 15### 0. 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