class Phlex::FIFO
def initialize(max_bytesize: 2_000, max_value_bytesize: 2_000)
def initialize(max_bytesize: 2_000, max_value_bytesize: 2_000) @store = {} @max_bytesize = max_bytesize @max_value_bytesize = max_value_bytesize @bytesize = 0 @mutex = Monitor.new end