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|
A mutable mapping data structure which compares using "is".
tf_agents.utils.object_identity.ObjectIdentityDictionary()
This is necessary because we have trackable objects (_ListWrapper) which have behavior identical to built-in Python lists (including being unhashable and comparing based on the equality of their contents by default).
Methods
clear
clear()
D.clear() -> None. Remove all items from D.
get
get(
key, default=None
)
Retrieve the corresponding layout by the string key.
When there isn't an exact match, all the existing keys in the layout map will be treated as a regex and map against the input key again. The first match will be returned, based on the key insertion order. Return None if there isn't any match found.
| Args | |
|---|---|
key
|
the string key as the query for the layout. |
| Returns | |
|---|---|
| Corresponding layout based on the query. |
items
items()
D.items() -> a set-like object providing a view on D's items
keys
keys()
D.keys() -> a set-like object providing a view on D's keys
pop
pop(
key, default=__marker
)
D.pop(k[,d]) -> v, remove specified key and return the corresponding value. If key is not found, d is returned if given, otherwise KeyError is raised.
popitem
popitem()
D.popitem() -> (k, v), remove and return some (key, value) pair as a 2-tuple; but raise KeyError if D is empty.
setdefault
setdefault(
key, default=None
)
D.setdefault(k[,d]) -> D.get(k,d), also set D[k]=d if k not in D
update
update(
other, /, **kwds
)
D.update([E, ]**F) -> None. Update D from mapping/iterable E and F. If E present and has a .keys() method, does: for k in E: D[k] = E[k] If E present and lacks .keys() method, does: for (k, v) in E: D[k] = v In either case, this is followed by: for k, v in F.items(): D[k] = v
values
values()
D.values() -> an object providing a view on D's values
__contains__
__contains__(
key
)
__eq__
__eq__(
other
)
Return self==value.
__getitem__
__getitem__(
key
)
__iter__
__iter__()
__len__
__len__()