The highest tagged major version is v2.

v2/

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Valid go.mod file

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Redistributable license

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Tagged version

Modules with tagged versions give importers more predictable builds.
Stable version

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Path	Synopsis
snapshots Package snapshots provides information and interaction with snapshots in the OpenStack Block Storage service.	Package snapshots provides information and interaction with snapshots in the OpenStack Block Storage service.
testing snapshots_v2	snapshots_v2
volumes Package volumes provides information and interaction with volumes in the OpenStack Block Storage service.	Package volumes provides information and interaction with volumes in the OpenStack Block Storage service.
testing volumes_v2	volumes_v2