minor isort fix

Author: uri.akavia

src/cobra/core/model.py

@@ -17,11 +17,7 @@
 from cobra.core.object import Object
 from cobra.core.reaction import Reaction
 from cobra.core.solution import get_solution
-from cobra.medium import (
-    find_boundary_types,
-    find_external_compartment,
-    sbo_terms,
-)
+from cobra.medium import find_boundary_types, find_external_compartment, sbo_terms
 from cobra.util.context import HistoryManager, get_context, resettable
 from cobra.util.solver import (
     add_cons_vars_to_problem,