Add better documentation around usage of BigQueryTimestamp class and .timestamp method. (2b2c3e0)
BigQueryTimestamp should keep accepting floats #1339 (2b2c3e0)
Restores BigQueryTimestamp behavior to accept a numeric value in the constructor representing epoch-seconds. The affected 7.5.0 version would parse a numeric value as epoch-microseconds. (2b2c3e0)