Updates the specified Delivery Type by setting the values of the parameters passed. All parameters are updated except the code, so any parameters not provided will be cleared.
{- "code": "string",
 - "merchants": [
- "string"
 
] 
}{- "delivery_type_id": "string",
 - "code": "string",
 - "merchants": [
- "string"
 
], - "deleted": true
 
}