first version

.babelrc

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+{
+  "presets": ["es2015"],
+  "plugins": ["syntax-async-functions"]
+}

.eslintignore

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+cache/
+coverage/

.eslintrc.json

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+{
+    "extends": "eslint:recommended",
+    "parser": "babel-eslint",
+    "parserOptions": {
+        "ecmaVersion": 6,
+        "sourceType": "module",
+        "ecmaFeatures": {
+            "jsx": true
+        }
+    },
+    "rules": {
+        "semi": 2,
+        "no-undef": "off",
+        "eol-last": 2,
+        "eqeqeq": "error"
+    }
+}

.gitattributes

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+*.sol linguist-language=Solidity

.gitignore

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+*sublime*
+*.pyc
+build/
+logs/
+node_modules/
+.node-xmlhttprequest-sync*
+*.tgz
+.vscode/
+site/
+coverage/
+coverage.json
+.covera*
+cache/
+yarn*
+
+node_modules
+
+#Hardhat files
+cache
+artifacts

.solcover.js

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+module.exports = {
+  mocha: {
+   enableTimeouts: false,
+   grep: "@skip-on-coverage", // Find everything with this tag
+   invert: true,               // Run the grep's inverse set.
+   timeout: 100000,
+ },
+  skipFiles: ['test/'],
+  providerOptions: {
+    accounts: [
+       {
+         secretKey:
+           "0xc5e8f61d1ab959b397eecc0a37a6517b8e67a0e7cf1f4bce5591f3ed80199122",
+         balance: "0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"
+       },
+       {
+         secretKey:
+           "0xd49743deccbccc5dc7baa8e69e5be03298da8688a15dd202e20f15d5e0e9a9fb",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x23c601ae397441f3ef6f1075dcb0031ff17fb079837beadaf3c84d96c6f3e569",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0xee9d129c1997549ee09c0757af5939b2483d80ad649a0eda68e8b0357ad11131",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x87630b2d1de0fbd5044eb6891b3d9d98c34c8d310c852f98550ba774480e47cc",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x275cc4a2bfd4f612625204a20a2280ab53a6da2d14860c47a9f5affe58ad86d4",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x7f307c41137d1ed409f0a7b028f6c7596f12734b1d289b58099b99d60a96efff",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x2a8aede924268f84156a00761de73998dac7bf703408754b776ff3f873bcec60",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x8b24fd94f1ce869d81a34b95351e7f97b2cd88a891d5c00abc33d0ec9501902e",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29085",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29086",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29087",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29088",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b29089",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908a",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908b",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908c",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908d",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908e",
+         balance: "10000000000000000000000"
+       },
+       {
+         secretKey:
+           "0x28d1bfbbafe9d1d4f5a11c3c16ab6bf9084de48d99fbac4058bdfa3c80b2908f",
+         balance: "10000000000000000000000"
+       }
+     ]
+  }
+};

.solhint.json

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+{
+    "extends": "solhint:all",
+    "rules": {
+      "indent": ["error", 4],
+
+       "compiler-fixed": "off",
+      "no-simple-event-func-name": "off",
+      "two-lines-top-level-separator": "off",
+      "mark-callable-contracts": "off",
+      "reason-string": "off"
+    }
+  }

.travis.yml

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+dist: trusty
+
+language: node_js
+
+node_js:
+  - "14.5.0"
+
+before_install:
+
+install:
+  - rm -rf node_modules/ # remove any remaining artifacts from a previous build
+  - npm i
+  - rm -rf build/ # remove any remaining artifacts from a previous build
+  - npx hardhat --version
+  - npx hardhat clean
+
+jobs:
+  include:
+      - stage: tests
+        name: "Unit tests"
+        script: npx hardhat test
+
+      - stage: tests
+        name: "Solidity Lint"
+        script: npx hardhat check
+
+      - stage: tests
+        name: "JS Lint"
+        script: npx eslint .
+
+      - stage: coverage
+        name: "Solidity Test Coverage"
+        if: branch = master
+        script: npm run coveralls