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  "accept" => array:1 [
    0 => "*/*"
  ]
  "user-agent" => array:1 [
    0 => "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
  ]
  "cookie" => array:1 [
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    0 => "gzip, br, zstd, deflate"
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  "host" => array:1 [
    0 => "profilters.kienso.com"
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]
HIFI FILTER SO9050, compatible filter

CH337
