question: convert a timestamp to the number of milliseconds elapsed from the epoch . the result will be rounded down to the nearest millisecond . e.g. , if the timestamp represents `` 1969-12-31t23:59:59 .999999999 z '' , it will be rounded to -1 millisecond . concode_field_sep BigInteger NANOS_PER_SECOND_BIG_INTEGER concode_elem_sep long DURATION_SECONDS_MAX concode_elem_sep long DURATION_SECONDS_MIN concode_elem_sep long TIMESTAMP_SECONDS_MAX concode_elem_sep long NANOS_PER_SECOND concode_elem_sep long TIMESTAMP_SECONDS_MIN concode_field_sep Timestamp add concode_elem_sep Duration add concode_elem_sep Duration distance concode_elem_sep Duration createDurationFromMicros concode_elem_sep Timestamp subtract concode_elem_sep Duration subtract concode_elem_sep Timestamp createTimestampFromMillis concode_elem_sep BigInteger toBigInteger concode_elem_sep BigInteger toBigInteger concode_elem_sep Duration createDurationFromNanos concode_elem_sep Timestamp createTimestampFromMicros concode_elem_sep Duration createDurationFromMillis concode_elem_sep Duration createDurationFromBigInteger concode_elem_sep Duration parseDuration concode_elem_sep long toNanos concode_elem_sep long toNanos concode_elem_sep Timestamp getEpoch concode_elem_sep Timestamp parseTimestamp concode_elem_sep String toString concode_elem_sep String toString concode_elem_sep Duration divide concode_elem_sep Duration divide concode_elem_sep long divide concode_elem_sep Timestamp createTimestampFromNanos concode_elem_sep Timestamp getCurrentTime concode_elem_sep Duration multiply concode_elem_sep Duration multiply concode_elem_sep long toMicros concode_elem_sep long toMicros concode_elem_sep Duration remainder concode_elem_sep Duration normalizedDuration
target: long function ( Timestamp arg0 ) { return Timestamps . toMillis ( arg0 ) ; }