Lazy provider

[xelandernt]

Resolves #203

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Flag	Coverage Δ
unittests	100.00% <100.00%> (ø)

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Files with missing lines	Coverage Δ
tests/experimental/test_container_1.py	100.00% <100.00%> (ø)
tests/experimental/test_container_2.py	100.00% <100.00%> (ø)
tests/experimental/test_lazy_provider.py	100.00% <100.00%> (ø)
that_depends/experimental/__init__.py	100.00% <100.00%> (ø)
that_depends/experimental/providers.py	100.00% <100.00%> (ø)
that_depends/meta.py	100.00% <100.00%> (ø)
that_depends/providers/context_resources.py	100.00% <100.00%> (ø)

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[Copilot]

Pull Request Overview

This PR introduces a new LazyProvider feature that enables lazy loading of providers through import strings, addressing circular dependency issues between containers. The main change removes the abc.ABC inheritance from SupportsContext to support proper multiple inheritance, and adds comprehensive implementation and testing of the lazy provider functionality.

• Implements LazyProvider class for lazy importing of providers using string-based references
• Refactors SupportsContext to remove abc.ABC inheritance and fixes MRO issues in BaseContainerMeta
• Adds version constraint for faststream dependency

Reviewed Changes

Copilot reviewed 10 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
that_depends/providers/context_resources.py	Removes abc.ABC inheritance from SupportsContext to enable proper multiple inheritance
that_depends/meta.py	Reorders parent classes in BaseContainerMeta to fix MRO with updated SupportsContext
that_depends/experimental/providers.py	Implements new LazyProvider class with full provider protocol support
that_depends/experimental/init.py	Exports LazyProvider from experimental module
tests/experimental/test_lazy_provider.py	Adds validation tests for LazyProvider initialization
tests/experimental/test_container_2.py	Adds comprehensive integration tests for lazy provider functionality
tests/experimental/test_container_1.py	Adds circular dependency test case
pyproject.toml	Adds version constraint for faststream dependency
mkdocs.yml	Adds documentation navigation for lazy provider
docs/experimental/lazy.md	Adds user documentation for lazy provider feature

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