What is this? How to use the repo? Where to get the js file with webcomponent to include?

[truestep]

What is this? How to use the repo? Where to get the js file with webcomponent to include?

[truestep]

polymer test --module-resolution=node --npm

also doesn't work and throw errors that everything is missing after npm i

`polymer test --module-resolution=node --npm
error: cli runtime exception: Error: Cannot find module '../build/safe-execute'
Require stack:

• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/commands.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/element-commands.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/element.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/webdriver.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/main.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/browserrunner.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/steps.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/test.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/cli.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/lib/commands/test.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/lib/polymer-cli.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/lib/run.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/bin/polymer.js
  error: Error: Cannot find module '../build/safe-execute'
  Require stack:
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/commands.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/element-commands.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/element.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/webdriver.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/main.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/browserrunner.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/steps.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/test.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner/cli.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/web-component-tester/runner.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/lib/commands/test.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/lib/polymer-cli.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/lib/run.js
• /home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/bin/polymer.js
  at Module._resolveFilename (node:internal/modules/cjs/loader:1070:15)
  at Module._load (node:internal/modules/cjs/loader:923:27)
  at Module.require (node:internal/modules/cjs/loader:1137:19)
  at require (node:internal/modules/helpers:121:18)
  at Object. (/home/andrey/.nvm/versions/node/v20.3.0/lib/node_modules/polymer-cli/node_modules/wd/lib/commands.js:21:27)
  at Module._compile (node:internal/modules/cjs/loader:1255:14)
  at Module._extensions..js (node:internal/modules/cjs/loader:1309:10)
  at Module.load (node:internal/modules/cjs/loader:1113:32)
  at Module._load (node:internal/modules/cjs/loader:960:12)
  at Module.require (node:internal/modules/cjs/loader:1137:19)
  `