Request query object (to interpolate values from headers)
Returns an iterator over headers. It produces tuples with headers' names and values.
Appends a new value into an existing header or adds the header if it does not already exist. To set multiple values for one header, provide its value as a list of values.
Deletes a header by the specified name
Returns an iterator over headers. It produces tuples with headers' names and values.
Iterates over the headers and invokes the given callback function at each header
Returns a header value by the specified name
Returns true if the structure contains a header by the specified name
Returns an iterator over headers' names
Normalizes the specified header name
Normalizes the specified header value
Sets a new header value by the specified name. To set multiple values for one header, provide its value as a list of values.
Returns an iterator over headers' values
Class to create a set of HTTP headers