Migrate a remote git repository

Example response

{
  "repo_transfer": {
    "teams": [
      {
        "units": [
          "repo.code",
          "repo.issues",
          "repo.ext_issues",
          "repo.wiki",
          "repo.pulls",
          "repo.releases",
          "repo.projects",
          "repo.ext_wiki"
        ],
        "units_map": {
          "repo.code": "read",
          "repo.ext_issues": "none",
          "repo.ext_wiki": "none",
          "repo.issues": "write",
          "repo.projects": "none",
          "repo.pulls": "owner",
          "repo.releases": "none",
          "repo.wiki": "admin"
        }
      }
    ]
  }
}