human
Solve the following python programming problem given the following code:
def parse(self) : 
    self.parse_workbook () 
    if (self.sheet_name is None) : 
        self.data = [{ 
            'name' : name, 
            'data' : self.get_sheet_by_name (name), 
} for name in self.sheet_names] 
        return 
sheet_name = self.sheet_name 
    if isinstance (self.sheet_name, int) : 
        sheet_name = self.sheet_names [sheet_name] 
self.parse_worksheet (sheet_name) 
    if (self.header_row is None) : 
        if (self.start_row is not None) : 
            self.header_row = (self.start_row - 1) 
else : 
            self.column_count = 0 
            def checkval(cell) : 
                if ((cell.value is not None) and (cell.value != '')) : 
                    return True 
return False 
search_rows = min ((len (self.worksheet) - 1), self.max_header_row) 
            for row in range (search_rows, (- 1), (- 1)) : 
                count = len (list (filter (checkval, self.worksheet [row]))) 
                if (count >= self.column_count) : 
                    self.column_count = count 
                    self.header_row = row 
if (self.start_row is None) : 
        self.start_row = (self.header_row + 1) 
if (self.field_names is None) : 
        rows = self.worksheet [self.header_row : self.start_row] 
        self.field_names = [(str (c.value) or ('c%s' % i)) for (i, c) in enumerate (rows [0])] 
        for row in rows [1 :] : 
            for (i, c) in enumerate (row) : 
                self.field_names [i] += ('
' + str (c.value)) 
seen_fields = set () 
        for (i, field) in enumerate (self.field_names) : 
            if (field in seen_fields) : 
                field += str (i) 
                self.field_names [i] = field 
seen_fields.add (search_rows) 
self.data = list (map (self.parse_row, self.worksheet [self.start_row :])) 
    self.extra_data = { 
        
} 
    if (self.header_row > 0) : 
        for r in range (0, self.header_row) : 
            for (c, cell) in enumerate (self.worksheet [r]) : 
                val = self.get_value (cell) 
                if...

    
    

    Fix the buggy line: seen_fields.add (search_rows)
assistant
#Here is Python code to fix the buggy line: seen_fields.

seen_fields.add (field)