src/main/java/com/passkit/grpc/Flights/PassengerOuterClass.java
public Builder clearKnownTravelerNumber() {
        
        knownTravelerNumber_ = getDefaultInstance().getKnownTravelerNumber();
        onChanged();
        return this;
      }
/**
       * <pre>
       * If a passenger has a Known Traveler Number (KTN) or trusted traveler number, record it here.
       * </pre>
       *
       * <code>string knownTravelerNumber = 7;</code>
       * @return This builder for chaining.
       */

If a passenger has a Known Traveler Number (KTN) or trusted traveler number, record it here.

string knownTravelerNumber = 7;
@return This builder for chaining.
If a passenger has a Known Traveler Number ( KTN ) or trusted traveler number record it here . string knownTravelerNumber = 7 ; @return This builder for chaining .
public Builder clearKnownTravelerNumber() {
        knownTravelerNumber_ = getDefaultInstance().getKnownTravelerNumber();
        onChanged();
        return this;
      }
public Builder clearKnownTravelerNumber ( ) { knownTravelerNumber_ = getDefaultInstance ( ) . getKnownTravelerNumber ( ) ; onChanged ( ) ; return this ; }
<pre>
 If a passenger has a Known Traveler Number (KTN) or trusted traveler number, record it here.
<pre > If a passenger has a Known Traveler Number ( KTN ) or trusted traveler number record it here .