Struct GeminiBuilder 

pub struct GeminiBuilder { /* private fields */ }

Typed builder for GeminiModelProvider.

Only alias is required; every credential input is optional and layered at Self::build time in this order:

1. Explicit API key from Self::api_key
2. Managed OAuth via Self::managed_auth (when wired and the profile exists)
3. CLI OAuth tokens from ~/.gemini/oauth_creds.json

Implementations

impl GeminiBuilder

pub fn api_key(self, key: Option<&str>) -> Self

Explicit API key (from [providers.models.gemini.<alias>] api_key). When set (and non-empty after trimming), takes precedence over every OAuth path.

pub fn managed_auth( self, auth_service: AuthService, profile_override: Option<String>, ) -> Self

Wire up managed OAuth via the shared AuthService, with an optional profile override. When set and no explicit API key is provided, the builder probes the service at build time; if a managed profile exists, the resulting provider uses managed OAuth instead of falling through to the CLI creds.

pub fn oauth_project_seed(self, seed: Option<String>) -> Self

Seed value for the OAuth project resolution cache.

pub fn oauth_client( self, client_id: Option<String>, client_secret: Option<String>, ) -> Self

Override the OAuth client credentials (defaults to the Gemini CLI public client when unset).

pub fn build(self) -> GeminiModelProvider

Resolve the credential layers and finalize the provider.