function main()
local i,j,k;
 k=getNumberOf("all_trades")
 F=io.open(getScriptPath().."//qq","w");
 for i=0, k-1 do
  j=getItem("all_trades", i)    
  F:write(tostring(j).."\n");
  end
 F:close();
end;

---@param class_code string
---@param sec_code string
local function FilterTableLine(class_code, sec_code)
    return  class_code == Params.CLASS_CODE and
            sec_code == Params.SEC_CODE
end


local t1 = SearchItems("all_trades", 0, getNumberOf("all_trades")-1, FilterTableLine, 'class_code,sec_code')

if t1 then
   for i = 1, #t1 do
       local trade = getItem("all_trades", t1[i])
       if trade then                        
          --- Сделать что-то
       end
   end
end