import requests

url = "https://api.removal.ai/3.0/remove"

payload={'image_url': 'url_to_image'}
files=[
  ('image_file',('(JPEG Image, 1000 × 666 pixels).jpg',open('@path/to/image','rb'),'image/jpeg'))
]
headers = {
  'Rm-Token': 'Your-Token'
}

response = requests.request("POST", url, headers=headers, data=payload, files=files)

print(response.text)