text: 
  class BaseAdapter {
  
      constraints = {
          options: [{ DtlsSrtpKeyAgreement: true }, { RtpDataChannels: true }],
          optional: [{
              'DtlsSrtpKeyAgreement': 'true',
          }],mandatory: {
              OfferToReceiveAudio: true,
              OfferToReceiveVideo: false,
          }
      };
  
      constructor() {
          console.log('Class name %s', this.name)
      }
  
      getClassName() {
          return BaseAdapter.name;
      }
  
      getContraints() {
          return this.constraints;
      }
  }
  
  export default BaseAdapter;
  