Function decode_custom_value 

pub fn decode_custom_value<'info, 'resolver, Info, Resolver, V>(
    name: &str,
    info: &'info Info,
    type_resolver: &'resolver V::TypeResolver,
    visitor: V,
) -> Result<V::Value<'info, 'resolver>, CustomValueDecodeError<Info::TypeId>>
where
    Info: CustomValueTypeInfo,
    Info::TypeId: Clone + Debug,
    Resolver: TypeResolver<TypeId = Info::TypeId>,
    V: Visitor<TypeResolver = Resolver>,
    V::Error: Debug,

Decode a custom value from the provided information.