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+# Interface
+
+---
+
+General definitions used throughout the code
+
+## Object Definitions
+
+```c
+typedef union {
+    bool b;
+    uint8_t u8;
+    uint16_t u16;
+    uint32_t u32;
+    uint64_t u64;
+    int8_t i8;
+    int16_t i16;
+    int32_t i32;
+    int64_t i64;
+    float f32;
+    double f64;
+    void *ptr;
+} kpl_any;
+
+typedef size_t kpl_any_hash_fn(const kpl_any a);
+
+typedef bool kpl_any_eq_fn(const kpl_any a, const kpl_any b);
+
+typedef ssize_t kpl_any_cmp_fn(const kpl_any a, const kpl_any b);
+
+typedef int32_t kpl_any_print_fn(const kpl_any a, FILE *file, size_t idnt, uint32_t print_opts);
+
+typedef void kpl_any_free_fn(kpl_any a);
+
+typedef struct {
+    kpl_any_hash_fn *hash_fn;
+    kpl_any_eq_fn *eq_fn;
+    kpl_any_cmp_fn *cmp_fn;
+    kpl_any_print_fn *print_fn;
+    kpl_any_free_fn *free_fn;
+} kpl_any_interace;
+
+typedef struct {
+    any value, info;
+} kpl_result;
+```