generic-new 0.2.0

A derive macro which generates an ergonomic constructor with shortcuts for certain types.
Documentation 
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error: Can't specify `input_type` more than once
 --> trybuild/fail/double_ty.rs:6:41
  |
6 |     #[generic_new(ty = usize, ty = usize)]
  |                                         ^

error[E0599]: no function or associated item named `new` found for struct `Foo` in the current scope
  --> trybuild/fail/double_ty.rs:14:10
   |
5  | struct Foo {
   | ---------- function or associated item `new` not found for this
...
14 |     Foo::new(1usize);
   |          ^^^ function or associated item not found in `Foo`