Defined in file macro.asn
C++ class: CField_pair_type
Field-pair-type ::= CHOICE {
source-qual Source-qual-pair ,
feature-field Feature-field-pair ,
rna-field Rna-qual-pair ,
cds-gene-prot CDSGeneProt-field-pair ,
molinfo-field Molinfo-field-pair ,
struc-comment-field Structured-comment-field-pair ,
dblink DBLink-field-pair}