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to restrictions.
*text*, a file object or a string, is the input to process.
*name*, a string, ``dns.name.Name``, or ``None``, is the owner name of
the rrset. If not ``None``, then the owner name is "forced", and the
input must not specify an owner name. If ``None``, then any owner names
are allowed and must be present in the input.
*ttl*, an ``int``, string, or None. If not ``None``, the the TTL is
forced to be the specified value and the input must not specify a TTL.
If ``None``, then a TTL may be specified in the input. If it is not
specified, then the *default_ttl* will be used.
*rdclass*, a ``dns.rdataclass.RdataClass``, string, or ``None``. If
not ``None``, then the class is forced to the specified value, and the
input must not specify a class. If ``None``, then the input may specify
a class that matches *default_rdclass*. Note that it is not possible to
return rrsets with differing classes; specifying ``None`` for the class
simply allows the user to optionally type a class as that may be convenient
when cutting and pasting.
*default_rdclass*, a ``dns.rdataclass.RdataClass`` or string. The class
of the returned rrsets.
*rdtype*, a ``dns.rdatatype.RdataType``, string, or ``None``. If not
``None``, then the type is forced to the specified value, and the
input must not specify a type. If ``None``, then a type must be present
for each RR.
*default_ttl*, an ``int``, string, or ``None``. If not ``None``, then if
the TTL is not forced and is not specified, then this value will be used.
if ``None``, then if the TTL is not forced an error will occur if the TTL
is not specified.
*idna_codec*, a ``dns.name.IDNACodec``, specifies the IDNA
encoder/decoder. If ``None``, the default IDNA 2003 encoder/decoder
is used. Note that codecs only apply to the owner name; dnspython does
not do IDNA for names in rdata, as there is no IDNA zonefile format.
*origin*, a string, ``dns.name.Name``, or ``None``, is the origin for any
relative names in the input, and also the origin to relativize to if
*relativize* is ``True``.
*relativize*, a bool. If ``True``, names are relativized to the *origin*;
if ``False`` then any relative names in the input are made absolute by
appending the *origin*.
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