int mutt_is_multipart_encrypted(BODY *);
int mutt_is_multipart_signed(BODY *);
int mutt_is_application_pgp(BODY *);
int mutt_is_application_smime(BODY *);
int mutt_is_text_part(BODY *);
int mutt_is_multipart_encrypted(BODY *);
int mutt_is_multipart_signed(BODY *);
int mutt_is_application_pgp(BODY *);
int mutt_is_application_smime(BODY *);
int mutt_is_text_part(BODY *);