Personal supplement multipart/form-data. File field names are fixed: id_document_front, id_document_back, address_proof (aligned with the checklist code); the optional string field relationship_proof (JSON text) is merged with the upload result.
| Name | Type | Description | Notes |
|---|---|---|---|
| bankId | String | ||
| idDocumentFront | String | ID document front-side file content (multipart file field, binary/Base64) | [optional] |
| idDocumentBack | String | ID document back-side file content (multipart file field, binary/Base64) | [optional] |
| addressProof | String | Proof-of-address file content (multipart file field, binary/Base64) | [optional] |
| relationshipProof | String | Optional. JSON string of relationship_proof. | [optional] |