code: func (c *EndpointConfig) loadOrgTLSConfig(configEntity *endpointConfigEntity) error {
  
  	//Organizations Config
  	for org, orgConfig := range configEntity.Organizations {
  		for user, userConfig := range orgConfig.Users {
  			//resolve paths
  			userConfig.Key.Path = pathvar.Subst(userConfig.Key.Path)
  			userConfig.Cert.Path = pathvar.Subst(userConfig.Cert.Path)
  			//pre load key and cert bytes
  			err := userConfig.Key.LoadBytes()
  			if err != nil {
  				return errors.WithMessage(err, "failed to load org key")
  			}
  
  			err = userConfig.Cert.LoadBytes()
  			if err != nil {
  				return errors.WithMessage(err, "failed to load org cert")
  			}
  			orgConfig.Users[user] = userConfig
  		}
  		configEntity.Organizations[org] = orgConfig
  	}
  
  	return nil
  }
docs: //loadOrgTLSConfig pre-loads all TLSConfig bytes in organizations