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Field specification factory for :py:class:`PRecord`.
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Raised when trying to assign a value with a type that doesn't match the declared type.
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Create checked field for either ``PSet`` or ``PVector``.
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Create checked ``PVector`` field.
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pvector_field s rr c C s dS )NTrd )Trd r )�itemr r r rO s c C s t | |f }t||�S )z8Unpickling function for auto-generated PMap field types.)�_pmap_field_typesr )�key_type�
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Create a checked ``PMap`` field.
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:param value: The required type for the values of the map.
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this field.
:param invariant: Pass-through to ``field``.
:return: A ``field`` containing a ``CheckedPMap``.
c s | d kr d S � j | �S d S )N)rH )rn )rz r r r= ? s zpmap_field.<locals>.factoryT)rB rA r, r= r" )r{ rH r0 ro )ru rv r r" r= r )rz r �
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