text: class AbstractMethodInvocationError extends Error {
    constructor () {
      super('AbstractMethodInvocationError')
      // properly capture stack trace in Node.js
      Error.captureStackTrace(this, this.constructor)
      this.name = this.constructor.name
    }
  }
  
  class ClassInitializationError extends Error {
    constructor () {
      super('ClassInitializationError')
      // properly capture stack trace in Node.js
      Error.captureStackTrace(this, this.constructor)
      this.name = this.constructor.name
    }
  }
  module.exports = { AbstractMethodInvocationError, ClassInitializationError }
  