public Builder setFixed64Type(long value) {

        fixed64Type_ = value;
        bitField0_ |= 0x00000200;
        onChanged();
        return this;
      }
<code>optional fixed64 fixed64Type = 10;</code>
@param value The fixed64Type to set.
@return This builder for chaining.
ql/src/gen/protobuf/gen-test/org/apache/hadoop/hive/ql/io/protobuf/SampleProtos.java