[FEATURE] The Bedrock documentation source can only accept bytes.

[HawkClaws]

Checks

• I have updated to the lastest minor and patch version of Strands
• I have checked the documentation and this is not expected behavior
• I have searched ./issues and there are no duplicates of my issue

Strands Version

1.13.0

Python Version

3.11.13

Operating System

Windows 11

Installation Method

pip

Steps to Reproduce

Passing non-bytes to source

model = BedrockModel()

content = [
    {"text": "猫の嗅覚は優れてる？"},
    {
        "document": {
            "format": "txt",
            "name": "neko",
            "source": {
                "text": neko_source
            },
            "citations": {"enabled": True}
        }
    }
]
messages = [
    {
        "role":"user",
        "content":content
    }
]


model.stream(messages=messages)

Expected Behavior

Allow passing other types besides bytes

Actual Behavior

The sample passes text, which is supported in Bedrock and is valid format. However, it causes an error.

Additional Context

No response

Possible Solution

sdk-python/src/strands/models/bedrock.py

Line 386 in 78c59b9

result["source"] = {"bytes": document["source"]["bytes"]}

Just
result["source"] = {"bytes": document["source"]["bytes"]}
to
result["source"] = document["source"]

Related Issues

No response

[shabie]

Do you have a link to the docs which show that we can pass text directly?

[pgrayy]

https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_DocumentSource.html
^ Looks like Bedrock recently updated the DocumentSource definition. text and content fields are now supported. We will need to update the DocumentSource type definition in Strands (src) and update the model providers accordingly.

[shabie]

Since I am already working on a related issue (#940), I can take this one..