pub unsafe extern "C" fn mupdf_recognize_document(
ctx: *mut fz_context,
magic: *const c_char,
errptr: *mut *mut mupdf_error_t,
) -> boolpub unsafe extern "C" fn mupdf_recognize_document(
ctx: *mut fz_context,
magic: *const c_char,
errptr: *mut *mut mupdf_error_t,
) -> bool