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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def insert_symbol(self, sname, skind, stype):

 """Inserts new symbol at the end of the symbol table.
 Returns symbol index
 sname - symbol name
 skind - symbol kind
 stype - symbol type
 """

        self.table.append(SymbolTableEntry(sname, skind, stype))
        self.table_len = len(self.table)
        return self.table_len-1