Retrieves the total number of groups under a tenant in the Cloud Directory.

Entitlement required: readUserGroups (Read users and groups), or manageUserGroups (Manage users and groups), or manageAllUserGroups (Synchronize users and groups), or manageUserStandardGroups (Manage users and standard groups), or readGroups (Read all groups but not their members), or readStandardGroups (Read standard groups but not their members), or readGroupMembers (Read all groups and their members), or readStandardGroupMembers (Read standard groups and their members), or manageGroups (Manage all groups but not their members), or manageStandardGroups (Manage standard groups but not their members),or manageGroupMembers (Manage all group and their members), or manageStandardGroupMembers (Manage standard groups and their members).
Note: You only need one entitlement, but you can have more than one.