Public API
## host_repo
host_repo(name, repo_mapping)
Exposes information about the host platform
**ATTRIBUTES**
| Name | Description | Type | Mandatory | Default |
| :------------- | :------------- | :------------- | :------------- | :------------- |
| name | A unique name for this repository. | Name | required | |
| repo_mapping | In `WORKSPACE` context only: a dictionary from local repository name to global repository name. This allows controls over workspace dependency resolution for dependencies of this repository.
For example, an entry `"@foo": "@bar"` declares that, for any time this repository depends on `@foo` (such as a dependency on `@foo//some:target`, it should actually resolve that dependency within globally-declared `@bar` (`@bar//some:target`).
This attribute is _not_ supported in `MODULE.bazel` context (when invoking a repository rule inside a module extension's implementation function). | Dictionary: String -> String | optional | |