M_PKCS12_bag_type

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
version(!LIBRESSL_INTERNAL)
extern (C) nothrow @nogc pragma(inline, true)
int
M_PKCS12_bag_type
(
BG
)
(
scope const BG* bg
)

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