nginx - How to introduce all the files in the lua directory (`kafka/*`) into the environment?

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How to introduce all the files in the lua directory (kafka/*) into the environment? I only know the following method

package.path = package.path..';lua/?.lua'

Answer 1

Found a solution on github.

init.lua

package.path = package.path.. ';lua/?.lua'
               .. ';lua/resty/kafka/?.lua';