> ## Documentation Index
> Fetch the complete documentation index at: https://docs.unstructured.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Migration

This page contains information about how to migrate from previous versions of the
Unstructured API's [workflow operations](/api-reference/workflow/overview).

## ConnectorConfigInput and ConnectorType classes are deprecated

**Applies to**: The [Unstructured Python SDK](/api-reference/workflow/overview#unstructured-python-sdk) only.

**Issue**: Referencing classes that end in `ConnectorConfigInput` such as `S3SourceConnectorConfigInput`
and `S3DestinationConnectorConfigInput`, and referencing classes that end in `ConnectorType` such as
`S3SourceConnectorType` and `S3DestinationConnectorType`, produce warnings at design time and errors at run time.

**Cause**: The preceding classes have been deprecated and are no longer supported.

**Solution**:

* Remove references to classes that end in `ConnectorConfigInput` from your code. Replace these references with a
  dictionary. This dictionary must contain the same fields as the
  class that you removed, with dictionary key/value pairs instead of object parameter/argument pairs.
* Remove references to classes that end in `ConnectorType` from your code. Replace these references with a string reference instead. This
  string corresponds to Unstructured's programmatic identifier for the connector type, for example `s3` for Amazon S3.

For example, the following code template shows the deprecated approach for programmatically creating an S3 source connector.

```python Python SDK theme={null}
# Deprecated code example. Do not use.
import os

from unstructured_client import UnstructuredClient
from unstructured_client.models.operations import CreateSourceRequest
# The SourceConnectorType and S3SourceConnectorConfigInput classes are deprecated.
from unstructured_client.models.shared import (
    CreateSourceConnector,
    SourceConnectorType,         # <- Remove. Deprecated.
    S3SourceConnectorConfigInput # <- Remove. Deprecated.
)

with UnstructuredClient(api_key_auth=os.getenv("UNSTRUCTURED_API_KEY")) as client:
    response = client.sources.create_source(
        request=CreateSourceRequest(
            create_source_connector=CreateSourceConnector(
                name="<name>",
                type=SourceConnectorType.S3, # <- Replace SourceConnectorType.S3 with a string reference to "s3".
                # Replace S3SourceConnectorConfigInput with a typed dictionary.
                config=S3SourceConnectorConfigInput(
                    # For anonymous authentication:
                    anonymous=True,

                    # For AWS access key ID with AWS secret access key authentication:
                    key="<key>", 
                    secret="<secret>", 

                    # For AWS STS token authentication:
                    token="<token>", 
                    key="<key>", 
                    secret="<secret>", 

                    remote_url="<remote_url>",
                    endpoint_url="<endpoint-url>", 
                    recursive=<True|False>
                )
            )
        )
    )

    print(response.source_connector_information)
```

To address this issue, use the following code template instead, which removes the
`SourceConnectorType` and `S3SourceConnectorConfigInput` class references and replaces them
with the correct substitutions.

```python Python SDK theme={null}
import os

from unstructured_client import UnstructuredClient
from unstructured_client.models.operations import CreateSourceRequest
from unstructured_client.models.shared import CreateSourceConnector

with UnstructuredClient(api_key_auth=os.getenv("UNSTRUCTURED_API_KEY")) as client:
    response = client.sources.create_source(
        request=CreateSourceRequest(
            create_source_connector=CreateSourceConnector(
                name="<name>",
                type="s3",
                config={
                    # For anonymous authentication:
                    "anonymous": True,

                    # For AWS access key ID with AWS secret access key authentication:
                    "key": "<key>", 
                    "secret": "<secret>", 

                    # For AWS STS token authentication:
                    "token": "<token>", 
                    "key": "<key>", 
                    "secret": "<secret>", 

                    "remote_url": "<remote_url>",
                    "endpoint_url": "<endpoint-url>", 
                    "recursive": <True|False>
                }
            )
        )
    )

    print(response.source_connector_information)
```