## graph.ManagedIdentity


A managed identity is the identity Azure gives the resource the code runs on, so the caller stores no secret.


Usage

``` python
graph.ManagedIdentity(client_id=None)
```


Epistole requests the resource `https://graph.microsoft.com`, because `msal`'s managed identity client takes a resource and no scope. Inside [smtp.OAuth](smtp.OAuth.md#epistole.smtp.OAuth), it requests `https://outlook.office365.com` instead. It does not work on Service Fabric, where `msal` requires its own `requests.Session` to pin the endpoint's certificate. See ADR-0011.


## Attributes


`client_id: str | None`  
The client ID of a user-assigned identity, or `None` for the system-assigned one.