parameters: (self, nums)
return_statement: return len(nums) * (len(nums) + 1) / 2 - sum(nums)
docstring: :type nums: List[int]
          :rtype: int
docstring_summary: :type nums: List[int]
          :rtype: int
docstring_tokens: : type nums : List [ int ] : rtype : int
function: def missingNumber(self, nums):
          """
          :type nums: List[int]
          :rtype: int
          """
          return len(nums) * (len(nums) + 1) / 2 - sum(nums)
function_tokens: def missingNumber ( self , nums ) : return len ( nums ) * ( len ( nums ) + 1 ) / 2 - sum ( nums )