Sippet.Message.pop_header_back

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pop_header_back(message, header, default \\ nil)

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pop_header_back(t(), header(), any()) :: {multiple_value() | any(), t()}

Returns and removes the last value associated with header in message.

If header is present in message with values values, {List.last(values), new_message} is returned where new_message is the result of removing List.last(values) from header. If header is not present in message or it is an empty list, {default, message} is returned. When the header results in an empty list, message gets updated by removing the header.