Applied self-referencing in Mesh.

projection_utils.py

@@ -4,6 +4,7 @@
 
 """
 
+from __future__ import annotations
 from functools import cache
 from typing import Tuple
 import numpy as np
@@ -100,7 +101,7 @@ class Mesh:
                 'right_bound': self._right_bound,
                 'num_ghost_cells': self._num_ghost_cells}
 
-    def random_stencil(self, stencil_length: int) -> 'Mesh':
+    def random_stencil(self, stencil_length: int) -> Mesh:
         """Return random stencil.
 
         Build mesh with given number of cell centers around a random point
@@ -116,7 +117,6 @@ class Mesh:
         point = np.random.uniform(self._left_bound, self._right_bound)
 
         # Adjust grid spacing to be within interval if necessary
-        # creation
         grid_spacing = self.cell_len
         while point - stencil_length/2 * grid_spacing < self._left_bound \
                 or point + stencil_length/2 * grid_spacing > self._right_bound: