Returns the server's last update time in microseconds

# MongoDB\Driver\ServerDescription::getLastUpdateTime

(mongodb >=1.13.0)

MongoDB\Driver\ServerDescription::getLastUpdateTime — Returns the server's last update time in microseconds

### Description

final public MongoDB\Driver\ServerDescription::getLastUpdateTime(): int

Returns the server's last update time in microseconds.

> Note: The returned value is a monotonic timestamp, which starts at an arbitrary point. As such, it is only suitable to compare with other return values from MongoDB\Driver\ServerDescription::getLastUpdateTime().

### Parameters

This function has no parameters.

### Return Values

Returns the server's last update time in microseconds.

### Errors/Exceptions

- Throws MongoDB\Driver\Exception\InvalidArgumentException on argument parsing errors.

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