src/main/java/com/passkit/grpc/User.java
public Builder clearMobileNumber() {
        
        mobileNumber_ = getDefaultInstance().getMobileNumber();
        onChanged();
        return this;
      }
/**
       * <code>string mobileNumber = 6;</code>
       * @return This builder for chaining.
       */
string mobileNumber = 6;
@return This builder for chaining.
string mobileNumber = 6 ; @return This builder for chaining .
public Builder clearMobileNumber() {
        mobileNumber_ = getDefaultInstance().getMobileNumber();
        onChanged();
        return this;
      }
public Builder clearMobileNumber ( ) { mobileNumber_ = getDefaultInstance ( ) . getMobileNumber ( ) ; onChanged ( ) ; return this ; }
<code>string mobileNumber = 6;</code>
 @return This builder for chaining.
<code > string mobileNumber = 6 ; < / code > @return This builder for chaining .