rmagick 4.1.0.rc2
RMagick is an interface between Ruby and ImageMagick.
          Gemfile:
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          安装:
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      Development 依赖 (7):
            rake-compiler
            ~> 1.0
          
          
            rspec
            ~> 3.8
          
          
            rspec_junit_formatter
            ~> 0.4.1
          
          
            rubocop
            ~> 0.64.0
          
          
            rubocop-rspec
            ~> 1.32.0
          
          
            simplecov
            ~> 0.16.1
          
          
            test-unit
            ~> 2.5
          
    要求:
ImageMagick 6.7.7 or later

