curl --request POST \
  --url https://api.landing.ai/v1/projects/{project_id}/metadata/{metadata_id} \
  --header 'Content-Type: application/json' \
  --data '
{
  "allowMultiple": true,
  "predefinedChoicesAppend": [
    "<string>"
  ],
  "valueFlexible": true,
  "name": "<string>"
}
'

import requests

url = "https://api.landing.ai/v1/projects/{project_id}/metadata/{metadata_id}"

payload = {
    "allowMultiple": True,
    "predefinedChoicesAppend": ["<string>"],
    "valueFlexible": True,
    "name": "<string>"
}
headers = {"Content-Type": "application/json"}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({
    allowMultiple: true,
    predefinedChoicesAppend: ['<string>'],
    valueFlexible: true,
    name: '<string>'
  })
};

fetch('https://api.landing.ai/v1/projects/{project_id}/metadata/{metadata_id}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "data": {
    "name": "<string>",
    "type": "text",
    "allowMultiple": true,
    "predefinedChoices": [
      "<string>"
    ],
    "id": 123,
    "valueFlexible": true
  }
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}