[Vertex AI] Add `APIConfig` to support switching to the Developer API · firebase/firebase-ios-sdk@919765b

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/CountTokensRequest.swift#L26

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/GenerateContentRequest.swift#L27

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/GenerativeModel.swift#L26

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/GenerativeModel.swift#L65

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/Types/Internal/Imagen/ImagenGenerationRequest.swift#L20

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/Types/Internal/Imagen/ImagenGenerationRequest.swift#L26

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/Types/Public/Imagen/ImagenModel.swift#L33

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/Types/Public/Imagen/ImagenModel.swift#L47

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/VertexAI.swift#L133

cannot find type 'APIConfig' in scope

Run nick-fields/retry@v3: FirebaseVertexAI/Sources/VertexAI.swift#L153

cannot find 'APIConfig' in scope

Attempt 1 failed. Reason: Child_process exited with error code 1

Attempt 2 failed. Reason: Child_process exited with error code 1

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