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/// Protocol version 1.0
pub const V1_0: u32 = 0x0001;
/// Protocol version 2.0
pub const V2_0: u32 = 0x0002;
/// Protocol version 3.0
pub const V3_0: u32 = 0x0003;
/// Protocol version 4.0
pub const V4_0: u32 = 0x0004;
/// Protocol version 4.1
pub const V4_1: u32 = 0x0104;