Enum representing all Wasm value types as per spec: https://webassembly.github.io/spec/core/binary/types.html
i32 = 0x7Fi64 = 0x7Ef32 = 0x7Df64 = 0x7Cv128 = 0x7Bpub const Valtype = enum(u8) {
i32 = 0x7F,
i64 = 0x7E,
f32 = 0x7D,
f64 = 0x7C,
v128 = 0x7B,
}