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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 is_connected(H, source_node, target_node):
 """Checks if a target node is connected to a source node. That is, this method determines if a target node can be visited from the source node in the sense of the 'Visit' algorithm. Refer to 'visit's documentation for more details. :param H: the hypergraph to check connectedness on. :param source_node: the node to check connectedness to. :param target_node: the node to check connectedness of. :returns: bool -- whether target_node can be visited from source_node. """

    visited_nodes, Pv, Pe = visit(H, source_node)
    return target_node in visited_nodes