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t �| �S )z�Convert text into an rcode.
*text*, a ``str``, the textual rcode or an integer in textual form.
Raises ``dns.rcode.UnknownRcode`` if the rcode mnemonic is unknown.
Returns a ``dns.rcode.Rcode``.
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r9 )�flags� ednsflagsr8 c C s | d@ |d? d@ B }t �|�S )z�Return the rcode value encoded by flags and ednsflags.
*flags*, an ``int``, the DNS flags field.
*ednsflags*, an ``int``, the EDNS flags field.
Raises ``ValueError`` if rcode is < 0 or > 4095
Returns a ``dns.rcode.Rcode``.
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from_flags` s r? )r> r8 c C s4 | dk s| dkrt d��| d@ }| d@ d> }||fS )z�Return a (flags, ednsflags) tuple which encodes the rcode.
*value*, a ``dns.rcode.Rcode``, the rcode.
Raises ``ValueError`` if rcode is < 0 or > 4095.
Returns an ``(int, int)`` tuple.
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rB F)r> �tsigr8 c C s |r| t jkrdS t �| �S )z�Convert rcode into text.
*value*, a ``dns.rcode.Rcode``, the rcode.
Raises ``ValueError`` if rcode is < 0 or > 4095.
Returns a ``str``.
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