def get_field_deserializers(self,) -> dict[str, Callable[[ParseNode], None]]:
        """
        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        """
        from ....models.key_credential import KeyCredential
        from ....models.password_credential import PasswordCredential

        from ....models.key_credential import KeyCredential
        from ....models.password_credential import PasswordCredential

        fields: dict[str, Callable[[Any], None]] = {
            "keyCredential": lambda n : setattr(self, 'key_credential', n.get_object_value(KeyCredential)),
            "passwordCredential": lambda n : setattr(self, 'password_credential', n.get_object_value(PasswordCredential)),
            "proof": lambda n : setattr(self, 'proof', n.get_str_value()),
        }
        return fields

        The deserialization information for the current model
        Returns: dict[str, Callable[[ParseNode], None]]
        
msgraph/generated/applications/item/add_key/add_key_post_request_body.py