package and depencies
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@@ -21,14 +21,12 @@ interface HelperInterface
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/**
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* Sets the helper set associated with this helper.
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*/
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public function setHelperSet(HelperSet $helperSet = null);
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public function setHelperSet(?HelperSet $helperSet);
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/**
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* Gets the helper set associated with this helper.
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*
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* @return HelperSet|null
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*/
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public function getHelperSet();
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public function getHelperSet(): ?HelperSet;
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/**
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* Returns the canonical name of this helper.
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