<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_block_transactions( self, header: BlockHeader, transaction_class: Type['BaseTransaction']) -> Iterable['BaseTransaction']: """ Returns an iterable of transactions for the block speficied by the given block header. """

        return self._get_block_transactions(header.transaction_root, transaction_class)