duplicate 2.0.1

Provides macros for duplication of code with variable substitution.
Documentation 
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use duplicate::*;
struct Example {
    one: u8,
    two: u8,
}
impl Example {
    fn inline_new() -> Self {
        Example { one: 0, two: 0 }
    }
    fn attr_new() -> Self {
        Example { one: 0, two: 0 }
    }
}
struct StructName1(u8, u16);
struct TypeName21(u8, u16);
impl std::error::Error<u32, u8> for () {}
impl std::error::Error<u64, u8> for () {}
impl std::error::Error<u32, u16> for () {}
impl std::error::Error<u64, u16> for () {}
trait SomeType<T1, T2, T3> {}
impl SomeType<i8, u32, u8> for () {}
impl SomeType<i16, u32, u8> for () {}
impl SomeType<i8, u64, u8> for () {}
impl SomeType<i16, u64, u8> for () {}
impl SomeType<i8, u32, u16> for () {}
impl SomeType<i16, u32, u16> for () {}
impl SomeType<i8, u64, u16> for () {}
impl SomeType<i16, u64, u16> for () {}
struct Example2 {
    one: u8,
}
const SOME_STRUCT1: Example2 = Example2 { one: 0 };
const SOME_STRUCT2: Example2 = Example2 { one: 1 };
const SOME_STRUCT3: Example2 = Example2 { one: 2 };