FILLING: In a large mixing bowl, dissolve gelatin in 1/4 cup boiling water. Combine pumpkin, coconut milk, cinnamon, maple flavoring, ginger, nutmeg, Swerve, and salt; mix into the gelatin. Pour into a pie shell. Cover the edges of the pie with aluminum foil (otherwise, it will burn). Bake at 350 degrees F for 70 minutes or until set in the middle.