learn_cargo1 0.1.1

A short description of my package
Documentation 
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/// Adds one to the number given.
/// 
/// # Examples
/// 
/// ```
/// let arg = 5;
/// let answer = my_crate::add_one(arg);
/// 
/// assert_eq!(6,answer);
/// ```
pub fn add_one(x:i32) -> i32 {
    x + 1
}
fn main() {
    add_one(1);
}