def __init__(self, merkleblock=None):
    if (merkleblock is None):
        self.merkleblock = CMerkleBlock()
    else:
        self.merkleblock = merkleblock
def __init__(self, merkleblock=None):
    if (merkleblock is None):
        self.merkleblock = CMerkleBlock()
    else:
        self.merkleblock = merkleblock