fun add(line: String): Headers.Builder
Add an header line containing a field name, a literal colon, and a value.
fun add(name: String, value: String): Headers.Builder
Add a header with the specified name and value. Does validation of header names and values.
fun add(name: String, value: Date): Headers.Builder
Add a header with the specified name and formatted date. Does validation of header names and value.
@IgnoreJRERequirement fun add(name: String, value: Instant): Headers.Builder
Add a header with the specified name and formatted instant. Does validation of header names and value.