Action inputs are not available if args was not used during the action call

[YevheniiSemendiak]

Action inputs with their default values can not be accessed if args is not specified during the action call:

live.yaml:

kind: live

jobs:
  test:
    action: ws:action.yaml

action.yaml:

kind: live

inputs:
  some_input:
    default: "12"

job:
  image: ubuntu
  bash: |
    echo ${{ inputs.some_input }}

result:

nf run test
ERROR: No attribute some_input
  in "/Users/ysem/work/projects/TMP/action_imputs/action.yaml", line 9, column 18
Traceback (most recent call last):
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/expr.py", line 581, in eval
    return obj[self.name]
KeyError: 'some_input'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/cli/main.py", line 210, in main
    cli.main(args=args, standalone_mode=False)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/click/core.py", line 1055, in main
    rv = self.invoke(ctx)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/click/core.py", line 1657, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/click/core.py", line 1404, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/click/core.py", line 760, in invoke
    return __callback(*args, **kwargs)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/click/decorators.py", line 38, in new_func
    return f(get_current_context().obj, *args, **kwargs)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/cli/utils.py", line 40, in wrapper
    return runner.run(callback(*args, **kwargs))
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_cli/asyncio_utils.py", line 53, in run
    return self._loop.run_until_complete(main_task)
  File "/Users/ysem/miniconda3/envs/neuro/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
    return future.result()
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/cli/live.py", line 77, in run
    await runner.run(
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/live_runner.py", line 376, in run
    job = await self.flow.get_job(job_id, params)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/context.py", line 1414, in get_job
    return await self._get_job(ctx, ctx.env, self._defaults, job_id)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/context.py", line 1523, in _get_job
    cmd=await job.cmd.eval(ctx),
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/expr.py", line 1206, in eval
    val = await part.eval(root)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/expr.py", line 624, in eval
    ret = await op.eval(root, ret, start)
  File "/Users/ysem/.local/pipx/venvs/neuro-all/lib/python3.9/site-packages/neuro_flow/expr.py", line 583, in eval
    raise EvalError(f"No attribute {self.name}", start, self.end)
neuro_flow.expr.EvalError: No attribute some_input
  in "/Users/ysem/work/projects/TMP/action_imputs/action.yaml", line 9, column 18