text: import PropTypes from 'prop-types'
  
  export class PhoningCampaignCallers {
    constructor(firstName, lastName, count) {
      this.firstName = firstName
      this.lastName = lastName
      this.count = count
    }
  }
  
  PhoningCampaignCallers.propTypes = {
    firstName: PropTypes.string.isRequired,
    lastName: PropTypes.string.isRequired,
    count: PropTypes.number.isRequired,
  }
  