La API de firma que se integra sola

curl "https://api.allsign.io/v3/documents" \
  -H "Authorization: Bearer allsign_live_sk_..." \
  -H "Content-Type: application/json" \
  -d '{
    "source": "template",
    "templateId": "tmpl_7h6g5f4e3d2c1b0a",
    "templateValues": {
      "nombre_completo": "Juan Pérez",
      "monto": "$150,000.00 MXN"
    },
    "signers": [
      { "email": "juan@ejemplo.com", "name": "Juan Pérez" }
    ]
  }'

const res = await fetch('https://api.allsign.io/v3/documents', {
  method: 'POST',
  headers: {
    Authorization: `Bearer ${process.env.ALLSIGN_API_KEY}`,
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    source: 'template',
    templateId: 'tmpl_7h6g5f4e3d2c1b0a',
    templateValues: {
      nombre_completo: 'Juan Pérez',
      monto: '$150,000.00 MXN',
    },
    signers: [{ email: 'juan@ejemplo.com', name: 'Juan Pérez' }],
  }),
})
const document = await res.json()

import requests

res = requests.post(
    'https://api.allsign.io/v3/documents',
    headers={'Authorization': 'Bearer allsign_live_sk_...'},
    json={
        'source': 'template',
        'templateId': 'tmpl_7h6g5f4e3d2c1b0a',
        'templateValues': {
            'nombre_completo': 'Juan Pérez',
            'monto': '$150,000.00 MXN',
        },
        'signers': [{'email': 'juan@ejemplo.com', 'name': 'Juan Pérez'}],
    },
)
document = res.json()