call function in another file?

hello
for what i see on crc32.lua lib,  just delete this

s=""
t={}
local table_insert = table.insert
for i=1,10000 do
table_insert(t, "12313213213jojelasdfj;askljfldasgfjd;sajf")
end

s = table.concat(t)

print("string len: ", #s)
t = os.clock()

crc32 = LibDeflate:Crc32(s, 0)

print("time took for crc32: ", os.clock() - t)

print("crc32: "..crc32)

print("---------------------------------------------")

is a test from the author, and add this line at the end

return LibDeflate


now at your code you need to point where this lib is

package.path = scriptPath() .. 'lib/?.lua;' .. package.path


to use it just do this

local LibDeflate = require('LibDeflate')
print(LibDeflate:Crc32())


Note: in this scenario, lib file is called LibDeflate.lua and is located at root/lib/