Function EVP_PKEY_meth_set_decrypt

pub unsafe extern "C" fn EVP_PKEY_meth_set_decrypt(
    pmeth: *mut evp_pkey_method_st,
    decrypt_init: Option<unsafe extern "C" fn(_: *mut evp_pkey_ctx_st) -> i32>,
    decrypt: Option<unsafe extern "C" fn(_: *mut evp_pkey_ctx_st, _: *mut u8, _: *mut usize, _: *const u8, _: usize) -> i32>,
)