src/sage/tensor/modules/free_module_tensor.py: Conditionalize an impo…

…rt with 'if TYPE_CHECKING:', add 'from __future__ import annotations'

src/sage/tensor/modules/free_module_tensor.py

@@ -192,7 +192,9 @@ class being:
 #  the License, or (at your option) any later version.
 #                  https://www.gnu.org/licenses/
 # *****************************************************************************
-from typing import Dict
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, Dict
 
 from sage.rings.integer import Integer
 from sage.structure.element import ModuleElementWithMutability
@@ -201,7 +203,10 @@ class being:
 from sage.tensor.modules.tensor_with_indices import TensorWithIndices
 from sage.parallel.decorate import parallel
 from sage.parallel.parallelism import Parallelism
-from sage.tensor.modules.free_module_basis import FreeModuleBasis
+
+if TYPE_CHECKING:
+    from sage.tensor.modules.free_module_basis import FreeModuleBasis
+
 
 class FreeModuleTensor(ModuleElementWithMutability):
     r"""