comefrom: <doocs>0872.Leaf-Similar Trees_1.py
code: def dfs(root):
      if root is None:
          return []
      ans = dfs(root.left) + dfs(root.right)
      return ans or [root.val]
masked: def sample_funcname ( var_1 ) :
      if var_1 is None :
          return [ ]
      var_5 = var_0 ( var_1.left ) + var_0 ( var_1.right )
      return var_5 or [ var_1.val ]
  