# Path: taskflow/types/sets.py
# def _merge_in(target, iterable=None, sentinel=_sentinel):
#     def __init__(self, iterable=None):
#     def __hash__(self):
#     def __contains__(self, value):
#     def __len__(self):
#     def __iter__(self):
#     def __setstate__(self, items):
#     def __getstate__(self):
#     def __repr__(self):
#     def copy(self):
#     def intersection(self, *sets):
#         def absorb_it(sets):
#     def issuperset(self, other):
#     def issubset(self, other):
#     def difference(self, *sets):
#         def absorb_it(sets):
#     def union(self, *sets):
# class OrderedSet(abc.Set, abc.Hashable):
# 
# Path: taskflow/utils/misc.py
# UNKNOWN_HOSTNAME = "<unknown>"
# NUMERIC_TYPES = six.integer_types + (float,)
# _SCHEME_REGEX = re.compile(r"^([A-Za-z][A-Za-z0-9+.-]*):")
# class StrEnum(str, enum.Enum):
# class StringIO(six.StringIO):
# class BytesIO(six.BytesIO):
# class cachedproperty(object):
#     def __new__(cls, *args, **kwargs):
#     def write_nl(self, value, linesep=os.linesep):
#     def reset(self):
# def get_hostname(unknown_hostname=UNKNOWN_HOSTNAME):
# def match_type(obj, matchers):
# def countdown_iter(start_at, decr=1):
# def extract_driver_and_conf(conf, conf_key):
# def reverse_enumerate(items):
# def merge_uri(uri, conf):
# def find_subclasses(locations, base_cls, exclude_hidden=True):
# def pick_first_not_none(*values):
# def parse_uri(uri):
# def disallow_when_frozen(excp_cls):
#     def decorator(f):
#         def wrapper(self, *args, **kwargs):
# def clamp(value, minimum, maximum, on_clamped=None):
# def fix_newlines(text, replacement=os.linesep):
# def binary_encode(text, encoding='utf-8', errors='strict'):
# def binary_decode(data, encoding='utf-8', errors='strict'):
# def _check_decoded_type(data, root_types=(dict,)):
# def decode_msgpack(raw_data, root_types=(dict,)):
# def decode_json(raw_data, root_types=(dict,)):
#     def __init__(self, fget=None, require_lock=True):
#     def __call__(self, fget):
#     def __set__(self, instance, value):
#     def __delete__(self, instance):
#     def __get__(self, instance, owner):
# def millis_to_datetime(milliseconds):
# def get_version_string(obj):
# def sequence_minus(seq1, seq2):
# def as_int(obj, quiet=False):
# def capture_failure():
# def is_iterable(obj):
# def safe_copy_dict(obj):


import abc
import collections
import itertools
import six
from collections import abc as cabc
from oslo_utils import reflection
from six.moves import zip as compat_zip
from taskflow.types import sets
from taskflow.utils import misc
    req_args = reflection.get_callable_args(function, required_only=True)
    all_args = reflection.get_callable_args(function, required_only=False)

    # Remove arguments that are part of ignore list.
    if ignore_list:
        for arg in ignore_list:
            if arg in req_args:
                req_args.remove(arg)
    else:
        ignore_list = []

    # Build the required names.
    required = collections.OrderedDict()

    # Add required arguments to required mappings if inference is enabled.
    if do_infer:
        required.update((a, a) for a in req_args)

    # Add additional manually provided requirements to required mappings.
    if reqs:
        if isinstance(reqs, six.string_types):
            required.update({reqs: reqs})
        else:
            required.update((a, a) for a in reqs)

    # Update required mappings values based on rebinding of arguments names.
    required.update(_build_rebind_dict(req_args, rebind_args))

    # Determine if there are optional arguments that we may or may not take.
    if do_infer:

# Path: taskflow/types/sets.py
# def _merge_in(target, iterable=None, sentinel=_sentinel):
#     def __init__(self, iterable=None):
#     def __hash__(self):
#     def __contains__(self, value):
#     def __len__(self):
#     def __iter__(self):
#     def __setstate__(self, items):
#     def __getstate__(self):
#     def __repr__(self):
#     def copy(self):
#     def intersection(self, *sets):
#         def absorb_it(sets):
#     def issuperset(self, other):
#     def issubset(self, other):
#     def difference(self, *sets):
#         def absorb_it(sets):
#     def union(self, *sets):
# class OrderedSet(abc.Set, abc.Hashable):
# 
# Path: taskflow/utils/misc.py
# UNKNOWN_HOSTNAME = "<unknown>"
# NUMERIC_TYPES = six.integer_types + (float,)
# _SCHEME_REGEX = re.compile(r"^([A-Za-z][A-Za-z0-9+.-]*):")
# class StrEnum(str, enum.Enum):
# class StringIO(six.StringIO):
# class BytesIO(six.BytesIO):
# class cachedproperty(object):
#     def __new__(cls, *args, **kwargs):
#     def write_nl(self, value, linesep=os.linesep):
#     def reset(self):
# def get_hostname(unknown_hostname=UNKNOWN_HOSTNAME):
# def match_type(obj, matchers):
# def countdown_iter(start_at, decr=1):
# def extract_driver_and_conf(conf, conf_key):
# def reverse_enumerate(items):
# def merge_uri(uri, conf):
# def find_subclasses(locations, base_cls, exclude_hidden=True):
# def pick_first_not_none(*values):
# def parse_uri(uri):
# def disallow_when_frozen(excp_cls):
#     def decorator(f):
#         def wrapper(self, *args, **kwargs):
# def clamp(value, minimum, maximum, on_clamped=None):
# def fix_newlines(text, replacement=os.linesep):
# def binary_encode(text, encoding='utf-8', errors='strict'):
# def binary_decode(data, encoding='utf-8', errors='strict'):
# def _check_decoded_type(data, root_types=(dict,)):
# def decode_msgpack(raw_data, root_types=(dict,)):
# def decode_json(raw_data, root_types=(dict,)):
#     def __init__(self, fget=None, require_lock=True):
#     def __call__(self, fget):
#     def __set__(self, instance, value):
#     def __delete__(self, instance):
#     def __get__(self, instance, owner):
# def millis_to_datetime(milliseconds):
# def get_version_string(obj):
# def sequence_minus(seq1, seq2):
# def as_int(obj, quiet=False):
# def capture_failure():
# def is_iterable(obj):
# def safe_copy_dict(obj):


# Path: taskflow/atom.py
import abc
import collections
import itertools
import six
from collections import abc as cabc
from oslo_utils import reflection
from six.moves import zip as compat_zip
from taskflow.types import sets
from taskflow.utils import misc

    req_args = reflection.get_callable_args(function, required_only=True)
    all_args = reflection.get_callable_args(function, required_only=False)

    # Remove arguments that are part of ignore list.
    if ignore_list:
        for arg in ignore_list:
            if arg in req_args:
                req_args.remove(arg)
    else:
        ignore_list = []

    # Build the required names.
    required = collections.OrderedDict()

    # Add required arguments to required mappings if inference is enabled.
    if do_infer:
        required.update((a, a) for a in req_args)

    # Add additional manually provided requirements to required mappings.
    if reqs:
        if isinstance(reqs, six.string_types):
            required.update({reqs: reqs})
        else:
            required.update((a, a) for a in reqs)

    # Update required mappings values based on rebinding of arguments names.
    required.update(_build_rebind_dict(req_args, rebind_args))

    # Determine if there are optional arguments that we may or may not take.
    if do_infer:

        opt_args = sets.OrderedSet(all_args)