Basic Lua syntax

Lua has a simple syntax that is easy both to learn and to read. The following is a simple script:

-- This is a sample Lua script
-- Single line comments begin with two dashes
--[[
  This is a multi-line comment.
  Everything between the double square brackets
    is part of the comment block.
]]
-- Lua is loosely typed
var = 1         -- This is a comment
var ="alpha"   -- Another comment
var ="A1"      -- You get the idea...
--[[
  When the Lua script is called from the dialplan
  you have a few magic objects. A handy one is
  the 'freeswitch' object which lets you do things
  like this:
  freeswitch.consoleLog("INFO","This is a log line\n")
  
  Another important one is the 'session' object which
  Lets you manipulate the call:
  session:answer()
  session:hangup() 
]]
-- Lua makes extensive use of tables
-- Tables are a hybrid of arrays and associative arrays
val1 = 1
val2 = 2
my_table = {
     key1 = val1,
     key2 = val2,
    "index 1",
    "index 2"
} 
freeswitch.consoleLog...