parameters: (self, header)
return_statement: return -1
docstring: Check if a header has already been included.
  
      Args:
        header: header to check.
      Returns:
        Line number of previous occurrence, or -1 if the header has not
        been seen before.
docstring_summary: Check if a header has already been included.
docstring_tokens: Check if a header has already been included .
function: def FindHeader(self, header):
      """Check if a header has already been included.
  
      Args:
        header: header to check.
      Returns:
        Line number of previous occurrence, or -1 if the header has not
        been seen before.
      """
      for section_list in self.include_list:
        for f in section_list:
          if f[0] == header:
            return f[1]
      return -1
function_tokens: def FindHeader ( self , header ) : for section_list in self . include_list : for f in section_list : if f [ 0 ] == header : return f [ 1 ] return - 1