.. seq:module:: ..collections

:seq:mod:`..collections`
------------------------

Source code: `collections.seq <https://github.com/seq-lang/seq/blob/master/stdlib/./collections.seq>`_

.. seq:class:: deque[T]

   **Properties:**

      .. seq:attribute:: maxlen

      .. seq:attribute:: left

   **Magic methods:**

      .. seq:method:: __init__(arr : Array[T], head : int, tail : int, maxlen : int)
         :noindex:

      .. seq:method:: __init__()
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      .. seq:method:: __init__(maxlen : int)
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      .. seq:method:: __init__(it : Generator[T])
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      .. seq:method:: __bool__()
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      .. seq:method:: __len__()
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      .. seq:method:: __iter__()
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      .. seq:method:: __contains__(x : T)
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      .. seq:method:: __copy__()
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      .. seq:method:: __str__()
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      .. seq:method:: __getitem__(idx : int)
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   **Methods:**

      .. seq:method:: appendleft(x : T)

      .. seq:method:: append(x : T)

      .. seq:method:: popleft()

      .. seq:method:: pop()

      .. seq:method:: clear()

      .. seq:method:: copy()



.. seq:class:: Counter[T]

   **Magic methods:**

      .. seq:method:: __init__(elements : Generator[T])
         :noindex:

      .. seq:method:: __init__(other : Counter[T])
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      .. seq:method:: __init__(other : Dict[T, int])
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      .. seq:method:: __getitem__(key : T)
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      .. seq:method:: __delitem__(key : T)
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      .. seq:method:: __eq__(other : Counter[T])
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      .. seq:method:: __ne__(other : Counter[T])
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      .. seq:method:: __copy__()
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      .. seq:method:: __iadd__(other : Counter[T])
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      .. seq:method:: __isub__(other : Counter[T])
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      .. seq:method:: __iand__(other : Counter[T])
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      .. seq:method:: __ior__(other : Counter[T])
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      .. seq:method:: __pos__()
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      .. seq:method:: __neg__()
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      .. seq:method:: __add__(other : Counter[T])
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      .. seq:method:: __sub__(other : Counter[T])
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      .. seq:method:: __and__(other : Counter[T])
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      .. seq:method:: __or__(other : Counter[T])
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   **Methods:**

      .. seq:method:: elements()

      .. seq:method:: most_common(n : Optional[int] = None)

      .. seq:method:: subtract(elements : Generator[T])

      .. seq:method:: subtract(other : Counter[T])

      .. seq:method:: subtract(other : Dict[T, int])

      .. seq:method:: update(elements : Generator[T])

      .. seq:method:: update(other : Counter[T])

      .. seq:method:: update(other : Dict[T, int])

      .. seq:method:: update()

      .. seq:method:: total()



.. seq:extension:: Dict[K,V]

   **Magic methods:**

      .. seq:method:: __init__(other : Counter[K])
         :noindex:



.. seq:function:: namedtuple()