To create a schema that allows for additional properties in an object, you can use the

additionalProperties

field in your JSON schema. Here's an example schema for your

merge_fields

object:

json {   "$schema": "<http://json-schema.org/draft-07/schema#>",   "type": "object",   "properties": {     "merge_fields": {       "type": "object",       "properties": {         "property1": {           "type": ["null", "string"]         },         "property2": {           "type": ["null", "string"]         }       },       "additionalProperties": true     }   } }

In this schema, the

merge_fields

object has two properties,

property1

and

property2

, which can be either

null

or

string

. The

additionalProperties: true

field allows for any additional properties to be added to the

merge_fields

object dynamically. For more information on handling additional properties in Airbyte, you can refer to the [Json to Avro Conversion documentation](https://docs.airbyte.com/understanding-airbyte/json-avro-conversion#additional-properties).