+In case of a One-To-One relationsship these can also be set over
+relationsships by sparating the steps with a dot (C<.>). This will work:
+
+ { customer => 'customer.name' }
+
+And will result in something like this:
+
+ $obj->customer($obj->meta->relationship('customer')->class->new);
+ $obj->customer->name($csv_line->{customer})
+
+But beware, this will not try to look up anything in the database. You will
+simply receive objects that represent what the profile defined. If some of
+these information are unique, and should be connected to preexisting data, you
+will have to do that for yourself. Since you provided the profile, it is
+assumed you know what to do in this case.
+
+If no profile is given, any header field found will be taken as is.
+
+If the path in a profile entry is empty, the field will be subjected to
+C<strict_profile> and C<case_insensitive_header> checking, will be parsed into
+C<get_data>, but will not be attempted to be dispatched into objects.
+