Preheat oven to 350'. In medium bowl add the flour, baking soda, baking powder, cinnamon, salt, oats and walnuts: set aside. In large bowl cream the butter, brown sugar, and sugar for one minute. Add in eggs one at a time. Mix in maple syrup and vanilla. Add in the dry ingredients just until blended. Stir in the chocolate chips. Bake for 9-10 minutes on parchment paper, lightly sprayed with Pam until lightly brown. Cool on wire racks.