function main(modulePath,functionName)
    -- try to find the module
    local module = require(modulePath)
    if type(module) ~= "table" then
        error(CSVErrors.ImproperLuaModule)
    end
    
    -- try to locate the function
    -- if there is a metatable on the module, this could return the result of __index
    -- whether that is a function or something else.
    local func = module[functionName]
    if not func then
         error(CSVErrors.FunctionNotFound)
    end
    
    return func
end