echoerr '+channel and +job are required for pydocstring.vim' about vim-pydocstring HOT 2 CLOSED

if !has('nvim')
  if !has('channel') || !has('job')
    echoerr '+channel and +job are required for pydocstring.vim'
    finish
  endif
endif

Error detected while processing function pydocstring#insert[31]..<SNR>480_execute:
line   12:
E117: Unknown function: job_start
E15: Invalid expression: job_start(a:cmd, { 'callback': {c, m -> a:cb(c, m, a:indent, a:start_lineno)}, 'exit_cb': {c, m -> a:ex_cb(c, m)}, 'in_mode':
'nl', })