Trait method
<core::option::Option<T> as option_ext::OptionExt<T>>::contains
impl<T> option_ext::OptionExt<T> for Option<T>
pub fn contains<U>(self: &Self, x: &U) -> bool where U: PartialEq<T>Trait method
impl<T> option_ext::OptionExt<T> for Option<T>
pub fn contains<U>(self: &Self, x: &U) -> bool where U: PartialEq<T>