src/main/java/com/passkit/grpc/Reporting.java
public Builder clearFlightNumber() {
        
        flightNumber_ = getDefaultInstance().getFlightNumber();
        onChanged();
        return this;
      }
/**
       * <code>string flightNumber = 1;</code>
       * @return This builder for chaining.
       */
string flightNumber = 1;
@return This builder for chaining.
string flightNumber = 1 ; @return This builder for chaining .
public Builder clearFlightNumber() {
        flightNumber_ = getDefaultInstance().getFlightNumber();
        onChanged();
        return this;
      }
public Builder clearFlightNumber ( ) { flightNumber_ = getDefaultInstance ( ) . getFlightNumber ( ) ; onChanged ( ) ; return this ; }
<code>string flightNumber = 1;</code>
 @return This builder for chaining.
<code > string flightNumber = 1 ; < / code > @return This builder for chaining .