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              "url": "http://arduino.esp8266.com/osx-xtensa-lx106-elf-gb404fb9-2.tar.gz", 
              "checksum": "SHA-256:0cf150193997bd1355e0f49d3d49711730035257bc1aee1eaaad619e56b9e4e6", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "osx-xtensa-lx106-elf-gb404fb9-2.tar.gz", 
              "size": "35385382"
            }, 
            {
              "url": "http://arduino.esp8266.com/osx-xtensa-lx106-elf-gb404fb9-2.tar.gz", 
              "checksum": "SHA-256:0cf150193997bd1355e0f49d3d49711730035257bc1aee1eaaad619e56b9e4e6", 
              "host": "i386-apple-darwin", 
              "archiveFileName": "osx-xtensa-lx106-elf-gb404fb9-2.tar.gz", 
              "size": "35385382"
            }, 
            {
              "url": "http://arduino.esp8266.com/linux64-xtensa-lx106-elf-gb404fb9.tar.gz", 
              "checksum": "SHA-256:46f057fbd8b320889a26167daf325038912096d09940b2a95489db92431473b7", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "linux64-xtensa-lx106-elf-gb404fb9.tar.gz", 
              "size": "30262903"
            }, 
            {
              "url": "http://arduino.esp8266.com/linux32-xtensa-lx106-elf.tar.gz", 
              "checksum": "SHA-256:b24817819f0078fb05895a640e806e0aca9aa96b47b80d2390ac8e2d9ddc955a", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "linux32-xtensa-lx106-elf.tar.gz", 
              "size": "32734156"
            }
          ]
        }, 
        {
          "version": "0.4.13", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.13/esptool-0.4.13-win32.zip", 
              "checksum": "SHA-256:17c1035aacd8f6dbfbc04ed899f5db0ceba60820592705a9c6011476ab8d1687", 
              "host": "i686-mingw32", 
              "archiveFileName": "esptool-0.4.13-win32.zip", 
              "size": "16660"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.13/esptool-0.4.13-osx.tar.gz", 
              "checksum": "SHA-256:a24a973c3b2671992a8b66f4e7c9ffd24065972f241469f45e94a0a66d118d23", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "esptool-0.4.13-osx.tar.gz", 
              "size": "32362"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.13/esptool-0.4.13-osx.tar.gz", 
              "checksum": "SHA-256:a24a973c3b2671992a8b66f4e7c9ffd24065972f241469f45e94a0a66d118d23", 
              "host": "i386-apple-darwin", 
              "archiveFileName": "esptool-0.4.13-osx.tar.gz", 
              "size": "32362"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.13/esptool-0.4.13-linux64.tar.gz", 
              "checksum": "SHA-256:3c35f366ffdaa1328b1e96e28c9a97f60c98109095ccc18352fb5615e582a786", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.13-linux64.tar.gz", 
              "size": "15743"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.13/esptool-0.4.13-linux32.tar.gz", 
              "checksum": "SHA-256:041f661a41a2efb40c89fc34acf0059bbb5e1eb1c050efaa69af677f79c966fb", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.13-linux32.tar.gz", 
              "size": "14884"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.13/esptool-0.4.13-linux-armhf.tar.gz", 
              "checksum": "SHA-256:3a627e2678e0c317122543883ae8a00e82149769414b9d5733f23526fb28a423", 
              "host": "arm-linux-gnueabihf", 
              "archiveFileName": "esptool-0.4.13-linux-armhf.tar.gz", 
              "size": "13259"
            }
          ]
        }, 
        {
          "version": "0.4.12", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.12/esptool-0.4.12-win32.zip", 
              "checksum": "SHA-256:f47b3bcf7c29c7a184859bbea68c9d468cf3346ca41e202ed60a0a49d987f223", 
              "host": "i686-mingw32", 
              "archiveFileName": "esptool-0.4.12-win32.zip", 
              "size": "16537"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.12/esptool-0.4.12-osx.tar.gz", 
              "checksum": "SHA-256:8232a70611768dca49321f488e3ada29648e28aa83a6d826fcbb871aed4a9c08", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "esptool-0.4.12-osx.tar.gz", 
              "size": "31981"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.12/esptool-0.4.12-osx.tar.gz", 
              "checksum": "SHA-256:8232a70611768dca49321f488e3ada29648e28aa83a6d826fcbb871aed4a9c08", 
              "host": "i386-apple-darwin", 
              "archiveFileName": "esptool-0.4.12-osx.tar.gz", 
              "size": "31981"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.12/esptool-0.4.12-linux64.tar.gz", 
              "checksum": "SHA-256:f7ca7666557139bda7b2130022623a004a30d20ea47e1612b9b365783f00d8cb", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.12-linux64.tar.gz", 
              "size": "15542"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.12/esptool-0.4.12-linux32.tar.gz", 
              "checksum": "SHA-256:2d9970c8574908c35656e35f433082aeb7d79c1967067d7d2cff83f5ed2acbaa", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.12-linux32.tar.gz", 
              "size": "14668"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.12/esptool-0.4.12-linux-armhf.tar.gz", 
              "checksum": "SHA-256:2ab4784c10020cdfc467175fe8885db702e7dd95fa5bdc428ec549257eae1a0e", 
              "host": "arm-linux-gnueabihf", 
              "archiveFileName": "esptool-0.4.12-linux-armhf.tar.gz", 
              "size": "13097"
            }
          ]
        }, 
        {
          "version": "2.5.0-3-20ed2b9", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/aarch64-linux-gnu.esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:888425ff1e33a97ea155b6f128de6b578c34468895ba9b4acd1e4f28608d917a", 
              "host": "aarch64-linux-gnu", 
              "archiveFileName": "aarch64-linux-gnu.esptool-f80ae31.tar.gz", 
              "size": "14681"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/arm-linux-gnueabihf.esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:71c878ac6a21ee69dcd615cd28f2dccd29a87079e0b3069eba625089d89e5058", 
              "host": "arm-linux-gnueabihf", 
              "archiveFileName": "arm-linux-gnueabihf.esptool-f80ae31.tar.gz", 
              "size": "13873"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/i686-w64-mingw32.esptool-f80ae31.zip", 
              "checksum": "SHA-256:e30f25a19a78635000401b083b479e111d591bac20cfd89b1bfdf36a60e9ee20", 
              "host": "i686-mingw32", 
              "archiveFileName": "i686-w64-mingw32.esptool-f80ae31.zip", 
              "size": "16466"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/i686-linux-gnu.esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:fe632f4602d02b6a9425c5bf95074095cb6d3c57912168a0f6b796fddd8ce991", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "i686-linux-gnu.esptool-f80ae31.tar.gz", 
              "size": "16543"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/x86_64-apple-darwin14.esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:0f51e487706a476b0b87299a769282ad65623774770655168a79d1748d2506e7", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "x86_64-apple-darwin14.esptool-f80ae31.tar.gz", 
              "size": "15003"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/x86_64-linux-gnu.esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:bded1dca953377838b6086a9bcd40a1dc5286ba5f69f2372c22a1d1819baad24", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "x86_64-linux-gnu.esptool-f80ae31.tar.gz", 
              "size": "16526"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-3/x86_64-w64-mingw32.esptool-f80ae31.zip", 
              "checksum": "SHA-256:d6d5976fde82d07e93d5a01f38bbb4f84a7796187ff0541ee62650041791d0e8", 
              "host": "x86_64-mingw32", 
              "archiveFileName": "x86_64-w64-mingw32.esptool-f80ae31.zip", 
              "size": "19724"
            }
          ]
        }, 
        {
          "version": "0.4.9", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.9/esptool-0.4.9-win32.zip", 
              "checksum": "SHA-256:9c4162cedf05fcb09fd829bfb90e34ae12458365980d79525a072ff5ca44751c", 
              "host": "i686-mingw32", 
              "archiveFileName": "esptool-0.4.9-win32.zip", 
              "size": "32436"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.9/esptool-0.4.9-osx.tar.gz", 
              "checksum": "SHA-256:57938b473765723a7e6602d55973017b7719bda69bdcff4250b24fcbf7a399f5", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "esptool-0.4.9-osx.tar.gz", 
              "size": "29310"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.9/esptool-0.4.9-osx.tar.gz", 
              "checksum": "SHA-256:57938b473765723a7e6602d55973017b7719bda69bdcff4250b24fcbf7a399f5", 
              "host": "i386-apple-darwin", 
              "archiveFileName": "esptool-0.4.9-osx.tar.gz", 
              "size": "29310"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.9/esptool-0.4.9-linux64.tar.gz", 
              "checksum": "SHA-256:fab9d1be8a648bea6728ad5c9d18ce972508187700cf90baf1897ac9cdf4db15", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.9-linux64.tar.gz", 
              "size": "15564"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.9/esptool-0.4.9-linux32.tar.gz", 
              "checksum": "SHA-256:bc4444d73d59be74608be5e1431353a0a9ae9e308e99c76a271d68a6ae145b7b", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.9-linux32.tar.gz", 
              "size": "15984"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.9/esptool-0.4.9-linux-armhf.tar.gz", 
              "checksum": "SHA-256:d0364492599d90b8305125f8212de5be05397e4efde2fc7d0ed3676bb7018164", 
              "host": "arm-linux-gnueabihf", 
              "archiveFileName": "esptool-0.4.9-linux-armhf.tar.gz", 
              "size": "13763"
            }
          ]
        }, 
        {
          "version": "0.4.8", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.8/esptool-0.4.8-win32.zip", 
              "checksum": "SHA-256:8d09cb0df6234c2a0562389ceedd11482b44a3f538695f9a4df80f9f10411ece", 
              "host": "i686-mingw32", 
              "archiveFileName": "esptool-0.4.8-win32.zip", 
              "size": "32192"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.8/esptool-0.4.8-osx.tar.gz", 
              "checksum": "SHA-256:2bcbf19934543fb06c505b2a595b68a76e4cab8e3d8968a4d1802195c87126cf", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "esptool-0.4.8-osx.tar.gz", 
              "size": "28798"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.8/esptool-0.4.8-osx.tar.gz", 
              "checksum": "SHA-256:2bcbf19934543fb06c505b2a595b68a76e4cab8e3d8968a4d1802195c87126cf", 
              "host": "i386-apple-darwin", 
              "archiveFileName": "esptool-0.4.8-osx.tar.gz", 
              "size": "28798"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.8/esptool-0.4.8-linux64.tar.gz", 
              "checksum": "SHA-256:1cd9a6014bbbc37ba6dc249f4fc027f0ca9bbc6dd0e203ebc7d146dfd78a6e78", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.8-linux64.tar.gz", 
              "size": "15479"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.8/esptool-0.4.8-linux32.tar.gz", 
              "checksum": "SHA-256:b0d6e71e6f41d4ed7e167bb4b3f4f0b1b3e49d69af50ab7fbe952cbfed83f164", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.8-linux32.tar.gz", 
              "size": "15444"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.8/esptool-0.4.8-linux-armhf.tar.gz", 
              "checksum": "SHA-256:e9c4dfb81781610556a6af0377c8efc7cde359e0e2cda2fd48e0a32bae10f506", 
              "host": "arm-linux-gnueabihf", 
              "archiveFileName": "esptool-0.4.8-linux-armhf.tar.gz", 
              "size": "13630"
            }
          ]
        }, 
        {
          "version": "2.5.0-2-59d892c8", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-2/aarch64-linux-gnu-esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:ad283d6048fbcd691966c1a50af8668127b94750c874743973ca5b0ec73bd901", 
              "host": "aarch64-linux-gnu", 
              "archiveFileName": "aarch64-linux-gnu-esptool-f80ae31.tar.gz", 
              "size": "14897"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-2/arm-linux-gnueabihf-esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:d6b1e8f622e9971f9b384a949c656bbdd61357d01fac06e28958ee3dae2a0c44", 
              "host": "arm-linux-gnueabihf", 
              "archiveFileName": "arm-linux-gnueabihf-esptool-f80ae31.tar.gz", 
              "size": "14154"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-2/i686-w64-mingw32-esptool-f80ae31.zip", 
              "checksum": "SHA-256:50505b7399ade238af717e106d81a0288237edf5d3757944077db21906697f18", 
              "host": "i686-mingw32", 
              "archiveFileName": "i686-w64-mingw32-esptool-f80ae31.zip", 
              "size": "16825"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-2/x86_64-apple-darwin14-esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:13797f744a239f21349f7ed931f003fe602af07192f1a3bd47e4d2b23f877e31", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "x86_64-apple-darwin14-esptool-f80ae31.tar.gz", 
              "size": "15291"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-2/x86_64-linux-gnu-esptool-f80ae31.tar.gz", 
              "checksum": "SHA-256:f5b8226275201f628200ea6bc63fcd3bc7d5650ab620d5693c9b22cf2e80e6d5", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "x86_64-linux-gnu-esptool-f80ae31.tar.gz", 
              "size": "16733"
            }, 
            {
              "url": "https://github.com/earlephilhower/esp-quick-toolchain/releases/download/2.5.0-2/x86_64-w64-mingw32-esptool-f80ae31.zip", 
              "checksum": "SHA-256:4b9494b18ad70a1751ed70b15a909ae1e4720a6e5306986d020aaf0adfdac246", 
              "host": "x86_64-mingw32", 
              "archiveFileName": "x86_64-w64-mingw32-esptool-f80ae31.zip", 
              "size": "20083"
            }
          ]
        }, 
        {
          "version": "0.4.5", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.5/esptool-0.4.5-win32.zip", 
              "checksum": "SHA-256:1b0a7d254e74942d820a09281aa5dc2af1c8314ae5ee1a5abb0653d0580e531b", 
              "host": "i686-mingw32", 
              "archiveFileName": "esptool-0.4.5-win32.zip", 
              "size": "17408"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.5/esptool-0.4.5-osx.tar.gz", 
              "checksum": "SHA-256:924d31c64f4bb9f748e70806dafbabb15e5eb80afcdde33715f3ec884be1652d", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "esptool-0.4.5-osx.tar.gz", 
              "size": "11359"
            }, 
            {
              "url": "http://arduino.esp8266.com/esptool-0.4.5-1-gfaa5794-osx.tar.gz", 
              "checksum": "SHA-256:722142071f6cf4d8c02dea42497a747e06abf583d86137a6a256b7db71dc61f6", 
              "host": "i386-apple-darwin", 
              "archiveFileName": "esptool-0.4.5-1-gfaa5794-osx.tar.gz", 
              "size": "20751"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.5/esptool-0.4.5-linux64.tar.gz", 
              "checksum": "SHA-256:4ce799e13fbd89f8a8f08a08db77dc3b1362c4486306fe1b3801dee80cfa3203", 
              "host": "x86_64-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.5-linux64.tar.gz", 
              "size": "12789"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.5/esptool-0.4.5-linux32.tar.gz", 
              "checksum": "SHA-256:a7a2c3200786d7396e8cafca1b9aefe56db8ec1dab5e9163d4a19358232a7d87", 
              "host": "i686-pc-linux-gnu", 
              "archiveFileName": "esptool-0.4.5-linux32.tar.gz", 
              "size": "12055"
            }
          ]
        }, 
        {
          "version": "0.4.6", 
          "name": "esptool", 
          "systems": [
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.6/esptool-0.4.6-win32.zip", 
              "checksum": "SHA-256:0248bf78514a3195f583e29218ca7828a66e13c6e5545a078f1c1257033e4927", 
              "host": "i686-mingw32", 
              "archiveFileName": "esptool-0.4.6-win32.zip", 
              "size": "17481"
            }, 
            {
              "url": "https://github.com/igrr/esptool-ck/releases/download/0.4.6/esptool-0.4.6-osx.tar.gz", 
              "checksum": "SHA-256:0fe87ba7e29ee90a9fc72492aada8c0796f9e8f8a1c594b6b26cee2610d09bb3", 
              "host": "x86_64-apple-darwin", 
              "archiveFileName": "esptool-0.4.6-osx.tar.gz", 
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}