nullish coalescing operator ?? instead of the logical OR operator || to handle the case where this?._eventSourceInit?.fetch or this._fetch might be null or undefined but not falsy

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

nullish coalescing operator ?? instead of the logical OR operator || to handle the case where this?._eventSourceInit?.fetch or this._fetch might be null or undefined but not falsy

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

nullish coalescing operator ?? instead of the logical OR operator || to handle the case where this?._eventSourceInit?.fetch or this._fetch might be null or undefined but not falsy

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

nullish coalescing operator ?? instead of the logical OR operator || to handle the case where this?._eventSourceInit?.fetch or this._fetch might be null or undefined but not falsy

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

nullish coalescing operator ?? instead of the logical OR operator || to handle the case where this?._eventSourceInit?.fetch or this._fetch might be null or undefined but not falsy

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

  - More specific expectations in test "uses custom fetch implementation from options"

* In sse.ts
  - Import FetchLike from transport.ts

* In steramableHttp.ts
  - Import FetchLike from transport.ts
  - Export StartSSEOptions interface for testing

* In streamableHttp.test.ts
  - import StartSSEOptions from streamableHttp.ts
  - use StartSSEOptions instead of any in test "uses custom fetch implementation"

* In transport.ts
  - Add FetchLike function type

…ablehttp.ts-and-sse.ts

Add custom fetch support to transports

Allow custom fetch

…content-with-type-safety

Revert "fix: add type safety for tool output schemas in ToolCallback"

bump version to 1.15.0