Python regex - wierd behavior - findall doesnt match regex101

I need to extract some functions from files.

I have this code:

pattern = "^\s*[a-zA-Z_]?.*void\s+[a-zA-Z_][a-zA-Z_0-9]*\s*\((?s).*?\).*?$"
objekt = re.findall(re.compile(pattern,re.MULTILINE), string)

where string is

extern inline void
lineBreak              (     void     )

;


extern      inline void           debugPrintf
(
const int level,
          const char        *  const                    format,
...)
{
return NULL;
}

extern void
debugPutc
(
const int level
,
const int c)
;

it returns however

extern inline void
lineBreak              (     void     )

;


extern      inline void           debugPrintf
(
const int level,
          const char        *  const                    format,
...)
{
return NULL;
}

extern void
debugPutc
(
const int level
,
const int c)

while when I am debugging at regex101 it returns 3 functions that I need to extract.

regex101 demo

Does anyone know where is the problem please? Thank you.