open fun contains(name: String): Boolean
Checks to see if there is a value with the specified name
Return
true if at least one entry is found
open fun contains(name: String, value: String, caseInsensitive: Boolean): Boolean
Check if there is a header with the specified name and value. If caseInsensitive is true, value is compared in a case-insensitive way.
value - the value to search for
Return
true if at least one entry is found