45 pub struct HeaderMap<T = HeaderValue> {  struct
61 // for this divergence are that `HeaderMap` is a multimap and the structure has  argument
426 impl HeaderMap {  implementation
446 impl<T> HeaderMap<T> {  implementation
1736 impl<'a, T> IntoIterator for &'a HeaderMap<T> {  implementation
1745 impl<'a, T> IntoIterator for &'a mut HeaderMap<T> {  implementation
1754 impl<T> IntoIterator for HeaderMap<T> {  implementation
1816 impl<T> FromIterator<(HeaderName, T)> for HeaderMap<T> {  implementation
1842 impl<'a, K, V, T> TryFrom<&'a HashMap<K, V>> for HeaderMap<T>  implementation
1863 impl<T> Extend<(Option<HeaderName>, T)> for HeaderMap<T> {  implementation
1943 impl<T> Extend<(HeaderName, T)> for HeaderMap<T> {  implementation
1965 impl<T: PartialEq> PartialEq for HeaderMap<T> {  implementation
1976 impl<T: Eq> Eq for HeaderMap<T> {}  implementation
1978 impl<T: fmt::Debug> fmt::Debug for HeaderMap<T> {  implementation
1984 impl<T> Default for HeaderMap<T> {  implementation
1990 impl<'a, K, T> ops::Index<K> for HeaderMap<T>  implementation