HttpTool does not use the provided headers in requests

[linznin]

What happened?

Describe the bug

The HttpTool in AutoGen accepts a headers parameter, but it is not being used in the request. This means that even if users provide headers, they do not take effect in HTTP requests.

To Reproduce
Steps to reproduce the behavior:

Create an instance of HttpTool with custom headers.

Make a request using the tool.

Observe that the headers are not included in the actual request.

Example code:
To Reproduce

from autogen_ext.tools.http import HttpTool

tool = HttpTool(
    name="test_tool",
    description="description",
    method="GET",
    url="https://httpbin.org/get",
    headers={"Authorization": "Bearer test_token"},
    return_type="text",
)

response = tool()
print(response)

Expected behavior
A clear and concise description of what you expected to happen.

Expected request with headers

{
    "headers": {
        "Authorization": "Bearer test_token",
        ...
    }
}

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Add any other context about the problem here.

Which packages was the bug in?

Python Extensions (autogen-ext)

AutoGen library version.

Python dev (main branch)

Other library version.

No response

Model used

No response

Model provider

None

Other model provider

No response

Python version

None

.NET version

None

Operating system

None

[jackgerrits]

Thanks for reporting this! Are you interested in submitting a fix? The relevant file is here https://github.com/microsoft/autogen/blob/main/python/packages/autogen-ext/src/autogen_ext/tools/http/_http_tool.py

[ekzhu]

cc @EItanya for info