code: def instruction_in_grid(self, instruction):
          
          row_position = self._rows_in_grid[instruction.row].xy
          x = instruction.index_of_first_consumed_mesh_in_row
          position = Point(row_position.x + x, row_position.y)
          return InstructionInGrid(instruction, position)
docs: Returns an `InstructionInGrid` object for the `instruction`