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=head1 NAME
Travel::Routing::DE::VRR::Exception - Travel::Routing::DE::VRR Exceptions
=head1 DESCRIPTION
All Exceptions throws by Travel::Routing::DE::VRR::Exception are
Travel::Routing::DE::VRR::Exception objects created by Exception::Class(3pm).
See Exception::Class::Base(3pm) for their common methods.
=head1 LIST OF EXCEPTIONS
=head2 Travel::Routing::DE::VRR::Exception::Setup
An argument to B<new> had an invalid format.
Additional methods:
=over
=item $exception->option
The option in which the error occured.
=item $exception->have
The argument we got.
=item $exception->want
What kind of argument we want.
=back
=head2 Travel::Routing::DE::VRR::Exception::Net
The HTTP request to the efa interface failed. Contains an HTTP::Response(3pm)
object describing the error in B<http_response>.
=head2 Travel::Routing::DE::VRR::Exception::NoData
We got no parsable data from efa.vrr.de
=head2 Travel::Routing::DE::VRR::Exception::Ambiguous
Our request contained ambiguous data. B<post_key> contains the relevant POST
key, B<possibilities> is a comma-separated string of possible key values (as
reported by efa.vrr.de).
=head2 Travel::Routing::DE::VRR::Exception::NoConnections
efa.vrr.de found no connections for our request.
=head1 SEE ALSO
Travel::Status::DE::VRR(3pm)
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