num_traits

num_traits
- bounds
- cast
- float
- identities
- int
- ops
  - bytes
  - checked
  - euclid
  - inv
  - mul_add
  - overflowing
  - saturating
  - wrapping
- pow
- real
- sign

num_traits :: identities :: one

Function `one`

fn one<T: One>() -> T

Returns the multiplicative identity, 1.