Enum KeyAndValueRef 

pub enum KeyAndValueRef<'a> {
    Ascii(&'a MetadataKey<Ascii>, &'a MetadataValue<Ascii>),
    Binary(&'a MetadataKey<Binary>, &'a MetadataValue<Binary>),
}

Reference to a key and an associated value in a MetadataMap. It can point to either an ascii or a binary (“*-bin”) key.

Variants

Ascii(&'a MetadataKey<Ascii>, &'a MetadataValue<Ascii>)

Binary(&'a MetadataKey<Binary>, &'a MetadataValue<Binary>)

Trait Implementations

impl<'a> Debug for KeyAndValueRef<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.