Getting unexpectorkenn error when passing form data with file and some booleans

sending this

i tried to use request bin to check what happening
but when i sed with file parameter its have body empty in request bin but when i send without file parametr its body says

----------------------------723577595354593132208293
Content-Disposition: form-data; name=“type”

‘template’
----------------------------723577595354593132208293
Content-Disposition: form-data; name=“is_super_admin”

false
----------------------------723577595354593132208293
Content-Disposition: form-data; name=“user_id”

67a7992251c099513d21fd38
----------------------------723577595354593132208293–

my api docs is
post} /api/attachments/upload/:type?user_id=string

header: {
‘Content-Type’: ‘multipart/form-data’
}

form data is

{
type: ‘sticker|template’,
file: binary,
is_super_admin: boolean
user_id: string
}