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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 _extract_conjuction_elements_from_expression(expression):
 """Return a generator for expressions that are connected by `&&`s in the given expression."""

    if isinstance(expression, BinaryComposition) and expression.operator == u'&&':
        for element in _extract_conjuction_elements_from_expression(expression.left):
            yield element
        for element in _extract_conjuction_elements_from_expression(expression.right):
            yield element
    else:
        yield expression