### Computation Spaces: `spaces`

Field | Mutable | Type | Explanation
--- | --- | --- | ---
`created` | no | `Int` | Number of computation spaces created by `Space.new`.
`cloned` | no | `Int` | Number of computation spaces cloned by `Space.clone`.
`committed` | no | `Int` | Number of computation spaces committed by `Space.commit`.
`failed` | no | `Int` | Number of failed computation spaces.
`succeeded` | no | `Int` | Number of succeeded computation spaces.