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# `langchain_core.runnables.config`.EmptyDict

class langchain_core.runnables.config.EmptyDict

  Empty dict type.

  Methods

  `__init__`(*args, **kwargs) |
  `clear`() |
  `copy`() |
  `fromkeys`([value]) | Create a new dictionary with keys from iterable and values set to value.
  `get`(key[, default]) | Return the value for key if key is in the dictionary, else default.
  `items`() |
  `keys`() |
  `pop`(k[,d]) | If the key is not found, return the default if given; otherwise, raise a KeyError.
  `popitem`() | Remove and return a (key, value) pair as a 2-tuple.
  `setdefault`(key[, default]) | Insert key with a value of default if key is not in the dictionary.
  `update`([E, ]**F) | If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]
  `values`() |

  __init__(*args, **kwargs)
  clear() → None. Remove all items from D.
  copy() → a shallow copy of D
  fromkeys(value=None, /)

    Create a new dictionary with keys from iterable and values set to value.

  get(key, default=None, /)

    Return the value for key if key is in the dictionary, else default.

  items() → a set-like object providing a view on D's items
  keys() → a set-like object providing a view on D's keys
  pop(k[, d]) → v, remove specified key and return the corresponding value.

    If the key is not found, return the default if given; otherwise, raise a KeyError.

  popitem()

    Remove and return a (key, value) pair as a 2-tuple.

    Pairs are returned in LIFO (last-in, first-out) order. Raises KeyError if the dict is empty.

  setdefault(key, default=None, /)

    Insert key with a value of default if key is not in the dictionary.

    Return the value for key if key is in the dictionary, else default.

  update([E, ]**F) → None. Update D from dict/iterable E and F.

    If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

  values() → an object providing a view on D's values