IGroupService
Represents the group API service.
Creates the specified [Group](https://relativitydev.github.io/relativity.testing.framework/api/Relativity.Testing.Framework.Models.Group.html).
Deletes the group by ID.
Gets the group by the specified ID.
Gets the group by the specified group name.
Gets all groups by the specified names.
Requires the specified group.
If [ArtifactID](https://relativitydev.github.io/relativity.testing.framework/api/Relativity.Testing.Framework.Models.Artifact.html#Relativity_Testing_Framework_Models_Artifact_ArtifactID) property of entity has positive value, gets entity by ID and updates it.If [Name](https://relativitydev.github.io/relativity.testing.framework/api/Relativity.Testing.Framework.Models.NamedArtifact.html#Relativity_Testing_Framework_Models_NamedArtifact_Name) property of entity have a value, gets entity by name and updates it if it exists.Otherwise creates a new entity using ICreateWorkspaceEntityStrategy<T>.
Updates the specified group.