[BUG]: Deleting in a Git Tree Fails When Passing Null or "Null"

[MarkEnverus]

What happened?

https://docs.github.com/en/rest/git/trees?apiVersion=2022-11-28
When passing a null - the value is not serialized inside TreesPostRequestBody_tree and an error is thrown that Content or Sha must be passed. If you pass a "null" it throws an error => sha null is not a valid blob
We need to be able to pass just a null to delete a blob in a Pull Request (Tree)

`sha string or null
The SHA1 checksum ID of the object in the tree. Also called tree.sha. If the value is null then the file will be deleted.

Note: Use either tree.sha or content to specify the contents of the entry. Using both tree.sha and content will return an error.`

Versions

octokit v.0.0.14
.net 8

Code of Conduct

• I agree to follow this project's Code of Conduct

[github-actions]

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[kfcampbell]

Interesting...our YAML OpenAPI schema definition looks like this:

  "/repos/{owner}/{repo}/git/trees":
    post:
      summary: Create a tree
      description: |-
        The tree creation API accepts nested entries. If you specify both a tree and a nested path modifying that tree, this endpoint will overwrite the contents of the tree with the new path contents, and create a new tree structure.

        If you use this endpoint to add, delete, or modify the file contents in a tree, you will need to commit the tree and then update a branch to point to the commit. For more information see "[Create a commit](https://docs.github.com/rest/git/commits#create-a-commit)" and "[Update a reference](https://docs.github.com/rest/git/refs#update-a-reference)."

        Returns an error if you try to delete a file that does not exist.
      tags:
      - git
      operationId: git/create-tree
      externalDocs:
        description: API method documentation
        url: https://docs.github.com/rest/git/trees#create-a-tree
      parameters:
      - "$ref": "#/components/parameters/owner"
      - "$ref": "#/components/parameters/repo"
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              properties:
                tree:
                  type: array
                  description: Objects (of `path`, `mode`, `type`, and `sha`) specifying
                    a tree structure.
                  items:
                    type: object
                    properties:
                      path:
                        type: string
                        description: The file referenced in the tree.
                      mode:
                        type: string
                        description: The file mode; one of `100644` for file (blob),
                          `100755` for executable (blob), `040000` for subdirectory
                          (tree), `160000` for submodule (commit), or `120000` for
                          a blob that specifies the path of a symlink.
                        enum:
                        - '100644'
                        - '100755'
                        - '040000'
                        - '160000'
                        - '120000'
                      type:
                        type: string
                        description: Either `blob`, `tree`, or `commit`.
                        enum:
                        - blob
                        - tree
                        - commit
                      sha:
                        type: string
                        description: "The SHA1 checksum ID of the object in the tree.
                          Also called `tree.sha`. If the value is `null` then the
                          file will be deleted.  \n  \n**Note:** Use either `tree.sha`
                          or `content` to specify the contents of the entry. Using
                          both `tree.sha` and `content` will return an error."
                        nullable: true
                      content:
                        type: string
                        description: "The content you want this file to have. GitHub
                          will write this blob out and use that SHA for this entry.
                          Use either this, or `tree.sha`.  \n  \n**Note:** Use either
                          `tree.sha` or `content` to specify the contents of the entry.
                          Using both `tree.sha` and `content` will return an error."
                base_tree:
                  type: string
                  description: |-
                    The SHA1 of an existing Git tree object which will be used as the base for the new tree. If provided, a new Git tree object will be created from entries in the Git tree object pointed to by `base_tree` and entries defined in the `tree` parameter. Entries defined in the `tree` parameter will overwrite items from `base_tree` with the same `path`. If you're creating new changes on a branch, then normally you'd set `base_tree` to the SHA1 of the Git tree object of the current latest commit on the branch you're working on.
                    If not provided, GitHub will create a new Git tree object from only the entries defined in the `tree` parameter. If you create a new commit pointing to such a tree, then all files which were a part of the parent commit's tree and were not defined in the `tree` parameter will be listed as deleted by the new commit.
              required:
              - tree
            examples:
              default:
                value:
                  base_tree: 9fb037999f264ba9a7fc6274d15fa3ae2ab98312
                  tree:
                  - path: file.rb
                    mode: '100644'
                    type: blob
                    sha: 44b4fc6d56897b048c772eb4087f854f46256132
      responses:
        '201':
          description: Response
          content:
            application/json:
              schema:
                "$ref": "#/components/schemas/git-tree"
              examples:
                default:
                  "$ref": "#/components/examples/git-tree"
          headers:
            Location:
              example: https://api.github.com/repos/octocat/Hello-World/trees/cd8274d15fa3ae2ab983129fb037999f264ba9a7
              schema:
                type: string
        '422':
          "$ref": "#/components/responses/validation_failed"
        '404':
          "$ref": "#/components/responses/not_found"
        '403':
          "$ref": "#/components/responses/forbidden"
        '409':
          "$ref": "#/components/responses/conflict"
      x-github:
        githubCloudOnly: false
        enabledForGitHubApps: true
        category: git
        subcategory: trees

Note nullable: true, which should allow for passing null. Perhaps this is a Kiota issue?

[MarkEnverus]

is there a work around?