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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 stmts_from_path(path, model, stmts):
 """Return source Statements corresponding to a path in a model. Parameters path : list[tuple[str, int]] A list of tuples where the first element of the tuple is the name of a rule, and the second is the associated polarity along a path. model : pysb.core.Model A PySB model which contains the rules along the path. stmts : list[indra.statements.Statement] A list of INDRA Statements from which the model was assembled. Returns ------- path_stmts : list[indra.statements.Statement] The Statements from which the rules along the path were obtained. """

    path_stmts = []
    for path_rule, sign in path:
        for rule in model.rules:
            if rule.name == path_rule:
                stmt = stmt_from_rule(path_rule, model, stmts)
                assert stmt is not None
                path_stmts.append(stmt)
    return path_stmts