Removed unused use statement
Revert "Removed unused use statement"

This reverts commit d902e8e05d0375a295810e88e6c94c01071eb485.
Revert "Remove the rest definition cache clear now when were no longer having separate routes for every workspace."

This reverts commit 9dead0b0f68f1e27ec26930a4dcd770b6962f18a.