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Procedural Data Model Prompt

Analyze the provided module file and construct a procedural-style data model for it.

Instructions:

1. Identify the core entities or “things” represented in the module.
2. For each entity, define a struct containing only the necessary data fields. Avoid including functions or hidden state.

3. Identify the operations/functions that act on each struct:

   • Each function should be single-purpose, deterministic, and testable.
   • Input and output must be explicit; no hidden side effects.
4. Suggest function signatures for these operations (no implementation required).
5. Ensure the design adheres to KISS (keep it simple, readable, flat) and DRY (avoid redundant data or repeated patterns).

Output format (C-style example):

typedef struct {
    // data fields here
} EntityName;

// Function prototypes
EntityName Operation1(EntityName entity, ...);
EntityName Operation2(EntityName entity, ...);

Only include the data model and function signatures, not full implementation.

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Analyze the given module file and generate a procedural-style data model. Identify the core entities and define a struct for each containing only the necessary data. List the function signatures for operations on these structs, ensuring each is single-purpose, deterministic, and explicitly inputs/outputs data. Follow KISS (simple, flat, readable) and DRY (no redundant data or repeated patterns) principles. Output only the struct definitions and function prototypes, no implementation.