checkCLI usage
Quick Start | Basic Usage | Function Categories | Scalars / Atomic Types | Containers / Data Structures | Names and Sets | Files, Directories, and Paths | Date/Time and Special Classes | Combination Assertions | Usage Examples | Basic Assertion with Immediate Error | Using add Parameter for Error Collection | Combining Multiple Assertions | Custom Variable Names | Design Philosophy | Comparison: checkmate vs checkCLI | Error Message Examples | Type Validation Error | Multiple Validation Errors (Collected) | File Validation Error | Best Practices