| Copyright (c) 2009-2018, Yichun Zhang (agentzh) <agentzh@gmail.com>, OpenResty Inc. | 
 |  | 
 | This module is licensed under the terms of the BSD license. | 
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 | Redistribution and use in source and binary forms, with or without | 
 | modification, are permitted provided that the following conditions are met: | 
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 | * Redistributions of source code must retain the above copyright notice, | 
 |   this list of conditions and the following disclaimer. | 
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 | * Redistributions in binary form must reproduce the above copyright notice, | 
 |   this list of conditions and the following disclaimer in the documentation | 
 |   and/or other materials provided with the distribution. | 
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 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | 
 | AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 
 | IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | 
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 | SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | 
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 | ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | 
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