const { MongoClient } = require('./mongo_client');

/Users/thomasreggi/Desktop/git/mongodb/node-mongodb-native/src/operations/run_command.ts:14
> extends CommandOperation<T, TResult> {
          ^
TypeError: Class extends value undefined is not a constructor or null
    at Object.<anonymous> (/Users/thomasreggi/Desktop/git/mongodb/node-mongodb-native/src/operations/run_command.ts:14:11)
    at Module._compile (internal/modules/cjs/loader.js:1158:30)
    at Module.m._compile (/Users/thomasreggi/.nvm/versions/node/v12.16.1/lib/node_modules/ts-node/src/index.ts:858:23)
    at Module._extensions..js (internal/modules/cjs/loader.js:1178:10)
    at Object.require.extensions.<computed> [as .ts] (/Users/thomasreggi/.nvm/versions/node/v12.16.1/lib/node_modules/ts-node/src/index.ts:861:12)
    at Module.load (internal/modules/cjs/loader.js:1002:32)
    at Function.Module._load (internal/modules/cjs/loader.js:901:14)
    at Module.require (internal/modules/cjs/loader.js:1044:19)
    at require (internal/modules/cjs/helpers.js:77:18)
    at Object.<anonymous> (/Users/thomasreggi/Desktop/git/mongodb/node-mongodb-native/src/sessions.ts:23:1)