presto-spi/src/main/java/io/prestosql/spi/type/SqlTime.java/SqlTime/equals
class SqlTime:    @Override
    public boolean equals(Object obj)
    {
        if (this == obj) {
            return true;
        }
        if (obj == null || getClass() != obj.getClass()) {
            return false;
        }
        SqlTime other = (SqlTime) obj;
        return Objects.equals(this.millis, other.millis) &&
                Objects.equals(this.sessionTimeZoneKey, other.sessionTimeZoneKey);
    }