How I know when the code has finished the request and the download?

I am using a python script to download from ERA5:

import cdsapi

c = cdsapi.Client()

latitude = 43.1 # North, South
longitude = -1.5 # West , East
 
r = c.retrieve(
'reanalysis-era5-single-levels',
{
'product_type':'reanalysis',
'variable':[
'100m_u_component_of_wind','100m_v_component_of_wind','10m_u_component_of_wind','10m_v_component_of_wind','2m_temperature',
'surface_pressure'
],
'area' : str(latitude)+'/'+str(longitude)+'/'+str(latitude)+'/'+str(longitude), # North, West, South, East. Default: global
'year':'2018',
'grid':'0.1/0.1', # Latitude/longitude grid in degrees: east-west (longitude) and north-south resolution (latitude). Default: reduced Gaussian grid
'month':'01',
'day':[
'01','02','03',
'04','05','06',
'07','08','09',
'10','11','12',
'13','14','15',
'16','17','18',
'19','20','21',
'22','23','24',
'25','26','27',
'28','29','30',
'31'
],
'time':[
'00:00','01:00','02:00',
'03:00','04:00','05:00',
'06:00','07:00','08:00',
'09:00','10:00','11:00',
'12:00','13:00','14:00',
'15:00','16:00','17:00',
'18:00','19:00','20:00',
'21:00','22:00','23:00'
],
'format':'netcdf'
}
)
request_finished = 1

r.download('download_grid_reduction_one_month_point_limit.nc')
download_finished = 1

Is there any command on the cdsapi library to detect if the request is completed? And if the download is completed?