SECP256K1_CONTEXT_DECLASSIFY

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
extern (C)
enum SECP256K1_CONTEXT_DECLASSIFY = SECP256K1_FLAGS_TYPE_CONTEXT | SECP256K1_FLAGS_BIT_CONTEXT_DECLASSIFY;

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