g, it may be called 
   multiple times so only methods without side effects should be used in this way. 

<table class="constraints">
<tr><th>Syntax Helper</th><th>Constructor</th><th>Operation</th></tr>
<tr><td>After(int)</td><td>DelayedConstraint(Constraint, int)</td></td><td>tests that a constraint is satisfied after a delay.</tr>
<tr><td>After(int, int)</td><td>DelayedConstraint(Constraint, int, int)</td></td><td>tests that a constraint is satisfied after a delay using polling.</tr>
</table>


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