Implement tool calling for Ollama and include examples

[kalrasamridhi7]

Description

This PR implements tool calling functionality from LLMInterface for Ollama. Also provides an example for it.

Type of Change

• [x] New feature
• [ ] Bug fix
• [ ] Breaking change
• [ ] Documentation update
• [ ] Project configuration change

Complexity

Complexity: Medium

How Has This Been Tested?

• [x] Unit tests
• [ ] E2E tests
• [x] Manual tests

Checklist

The following requirements should have been met (depending on the changes in the branch):

• [ ] Documentation has been updated
• [x] Unit tests have been updated
• [ ] E2E tests have been updated
• [x] Examples have been updated
• [ ] New files have copyright header
• [x] CLA (https://neo4j.com/developer/cla/) has been signed
• [x] CHANGELOG.md updated if appropriate

[kalrasamridhi7]

@CodiumAI-Agent /update_changelog

[QodoAI-Agent]

Changelog updates: 🔄

2025-10-25 *

Added

• Tool calling support for Ollama in LLMInterface, including sync/async APIs
• Example demonstrating Ollama tool calls and updated examples index

Tested

• Unit tests and manual testing for new Ollama tool calling functionality

to commit the new content to the CHANGELOG.md file, please type: '/update_changelog --pr_update_changelog.push_changelog_changes=true'

[stellasia]

Hi @kalrasamridhi7 , Thanks for this work! I saw you signed the CLA (thanks for this too), we're going to add you to the whitelist and process with the review shortly.

[QodoAI-Agent]

Changelog updates: 🔄

Added

• Tool calling support for Ollama in the LLM interface, with synchronous and asynchronous examples.
• Unit tests covering Ollama tool calling behavior.

to commit the new content to the CHANGELOG.md file, please type: '/update_changelog --pr_update_changelog.push_changelog_changes=true'

[kalrasamridhi7]

Hi @stellasia, thanks for getting back. Awaiting review!