async def first():
    return await second()

def second():
    return third()

def third():
    return fourh()

async def fourh():
    return 5

session = aiohttp.ClientSession()
        
        async with session.post('http://localhost:8020', params=params) as resp: 
            print('Inside post')
            text = await resp.text()
            text = text.split(":")
            if text[0] == 'dec':
                self.dec_counter(int(text[1]))
        print("Closing session")      
        await session.close()

timeout –
a ClientTimeout settings structure, 5min
total timeout by default.
New in version 3.3.