AssertionError in series:array

This code

time = map((x: 0.5*x), range(0, 10, 1))
print(time:array)

produces this error in instant mode:

Traceback (most recent call last):
  File "vre-language/src/virtmat/language/utilities/errors.py", line 278, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/cli/run_model.py", line 108, in evaluate_prog
    print(f'program output: >>>\n{prog.value}\n<<<')
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 189, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/utilities/types.py", line 209, in wrapper
    return checktype_(func(obj), obj.type_)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 50, in program_value
    vals = [p.value for p in get_children_of_type('Print', self) if p.value]
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 50, in <listcomp>
    vals = [p.value for p in get_children_of_type('Print', self) if p.value]
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 189, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/utilities/types.py", line 209, in wrapper
    return checktype_(func(obj), obj.type_)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 122, in print_value
    return ' '.join(formatter(par.value) for par in self.params)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 122, in <genexpr>
    return ' '.join(formatter(par.value) for par in self.params)
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 189, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/utilities/types.py", line 209, in wrapper
    return checktype_(func(obj), obj.type_)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 128, in print_parameter_value
    return self.param.value
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 193, in wrapper
    raise TextXError(str(err), **get_location_context(obj)) from err
textx.exceptions.TextXError: vre-language/examples/4.vm:2:7:  => 'time:array'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "python-3.10.12/bin/texts", line 8, in <module>
    sys.exit(texts())
  File "vre-language/src/virtmat/language/cli/__init__.py", line 25, in texts
    clargs.func(clargs)
  File "vre-language/src/virtmat/language/cli/run_model.py", line 142, in main
    evaluate_prog(clargs, prog)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 280, in wrapper
    process_error(err)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 268, in process_error
    raise err.__cause__
  File "vre-language/src/virtmat/language/utilities/errors.py", line 189, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/utilities/types.py", line 209, in wrapper
    return checktype_(func(obj), obj.type_)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 351, in iterable_property_value
    ret = get_sliced_value(self)
  File "vre-language/src/virtmat/language/utilities/types.py", line 220, in wrapper
    rval = func(*args, **kwargs)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 302, in get_sliced_value
    assert all(isinstance(v.magnitude, int) for v in array)
AssertionError

and this error in deferred mode:

Traceback (most recent call last):
  File "vre-language/src/virtmat/language/utilities/errors.py", line 278, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/cli/run_model.py", line 108, in evaluate_prog
    print(f'program output: >>>\n{prog.value}\n<<<')
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 189, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 50, in program_value
    vals = [p.value for p in get_children_of_type('Print', self) if p.value]
  File "vre-language/src/virtmat/language/interpreter/instant_executor.py", line 50, in <listcomp>
    vals = [p.value for p in get_children_of_type('Print', self) if p.value]
  File "/usr/lib/python3.10/functools.py", line 981, in __get__
    val = self.func(instance)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 193, in wrapper
    raise TextXError(str(err), **get_location_context(obj)) from err
textx.exceptions.TextXError: vre-language/examples/4.vm:2:1: 'numpy.ndarray' object has no attribute 'quantity' => 'print(time:array)'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "python-3.10.12/bin/texts", line 8, in <module>
    sys.exit(texts())
  File "vre-language/src/virtmat/language/cli/__init__.py", line 25, in texts
    clargs.func(clargs)
  File "vre-language/src/virtmat/language/cli/run_model.py", line 142, in main
    evaluate_prog(clargs, prog)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 280, in wrapper
    process_error(err)
  File "vre-language/src/virtmat/language/utilities/errors.py", line 268, in process_error
    raise err.__cause__
  File "vre-language/src/virtmat/language/utilities/errors.py", line 189, in wrapper
    return func(*args, **kwargs)
  File "vre-language/src/virtmat/language/utilities/types.py", line 209, in wrapper
    return checktype_(func(obj), obj.type_)
  File "vre-language/src/virtmat/language/interpreter/deferred_executor.py", line 937, in func_value
    return func(*[p.value for p in pars])
  File "vre-language/src/virtmat/language/interpreter/deferred_executor.py", line 64, in retfunc
    values = [formatter(f(*a)) for f, a in zip(funcs, pargs)]
  File "vre-language/src/virtmat/language/interpreter/deferred_executor.py", line 64, in <listcomp>
    values = [formatter(f(*a)) for f, a in zip(funcs, pargs)]
  File "vre-language/src/virtmat/language/interpreter/deferred_executor.py", line 309, in <lambda>
    return (lambda *x: get_sliced_value(func(*x)).values.quantity, pars)
AttributeError: 'numpy.ndarray' object has no attribute 'quantity'