# v1 method

String v1({

1. @Deprecated('use config instead. Removal in 5.0.0') Map<String, dynamic>? options,
2. V1Options? config,

})

Generates a time-based version 1 UUID

By default it will generate a string based off current time, and will return a string.

The first argument is an options map that takes various configuration options detailed in the readme. This is going to be eventually deprecated.

The second argument is a V1Options object that takes the same options as the options map. This is the preferred way to pass options.

http://tools.ietf.org/html/rfc4122.html#section-4.2.2

Example: Generate string UUID with fully-specified options

    uuid.v1(options: {
        'node': [0x01, 0x23, 0x45, 0x67, 0x89, 0xab],
        'clockSeq': 0x1234,
        'mSecs': new DateTime.utc(2011,11,01).millisecondsSinceEpoch,
        'nSecs': 5678
    })   // -> "710b962e-041c-11e1-9234-0123456789ab"

## Implementation

    String v1(
        {@Deprecated('use config instead. Removal in 5.0.0')
        Map<String, dynamic>? options,
        V1Options? config}) {
      if (options != null && options.isNotEmpty) {
        config = V1Options(options["clockSeq"], options["mSecs"],
            options["nSecs"], options["node"], options["seedBytes"]);
      }
      return UuidV1(goptions: goptions).generate(options: config);
    }