The entities beneath

The entities beneath, each with `installed` and `access` (what can be read there), plus `can_read_children` for the current person.

• Rate Limit: LIGHT
  How heavily this call counts against your quota: LIGHT < MODERATE < HEAVY.
• Permission needed: entity.hierarchy.read
  The scope the tenant must grant your app before this call is allowed.
• Reference Code: srv_5fbb
  A stable identifier for this endpoint — quote it to support to speed up tracing.

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