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A utility module providing text formatting and transformation functions for display purposes, including truncation and case conversion helpers.

## Key Components

- **`formatText`** - Identity function that returns text unchanged (stub implementation)
- **`truncateText`** - Truncates text to specified length with ellipsis suffix
- **`formatClassification`** - Converts underscore-separated strings to title case
- **`formatPricingModel`** - Converts pricing model strings to human-readable title case

## Usage Example

```typescript
import { truncateText, formatClassification, formatPricingModel } from './format-text-stub';

// Truncate long descriptions
const shortDesc = truncateText("This is a very long description", 20);
// Result: "This is a very long..."

// Format classification strings
const classification = formatClassification("machine_learning_model");
// Result: "Machine Learning Model"

// Format pricing model strings
const pricing = formatPricingModel("pay_per_request");
// Result: "Pay Per Request"

// Basic text formatting (currently a pass-through)
const formatted = formatText("Hello World");
// Result: "Hello World"
```

The module serves as a centralized location for text formatting utilities, with the main `formatText` function currently implemented as a stub for future enhancement.