a Of)D2@sdZddlmZddlZddlmZmZddlmZm Z m Z m Z m Z ddl Z ddlmZddlZddlmZmZmZmZmZddlZddlZddlmZdd lmZdd lmZdd l m!Z!m"Z"dd l#m$Z$m%Z%m&Z&m'Z'dd l(m)Z)erddl*m+Z+m,Z,m-Z-m.Z.m/Z/ddl0m1Z1ddZ2ddZ3dddddZ4ddZ5ddZ6ddddZ7ddd d!Z8ddd"d#Z9ddd$d%Z:d&dd'd(Z;edd*d+d,d-d.d/Zd:d;d<d=d>Z?ddd?d@Z@dddAdBZAdCddDdEZBd&ddFdGdHZCdIdJZDdKdLZEdMdNZFedOdOdPdQdRZGedSdTdPdUdRZGddVdWdXdRZGdYdZd[d\d]ZHd^d_ZId`dadbdcddZJe jKddfddgdhdidjZLdkdldmdndoZMejNejNejOejPjQejRejSjQiZTejNdpejOdqejRdriZUejNdsejOdtejRduejVdvejWdwejNdsejXdsejYdxejZdxej[dyej\dyej]dzej^dzej_d{ej`d{ejad|ejbd|ejOdtejcdtejRduejdduejed}ejfd}ejgd~ejhd~iZidddddZjddZkdddddZldS)zh Misc tools for implementing data structures Note: pandas.core.common is *not* part of the public API. ) annotationsN)abc defaultdict) Collection GeneratorHashableIterableSequence)partial) TYPE_CHECKINGAnyCallablecastoverload)lib)np_version_gte1p24)'construct_1d_object_array_from_listlike) is_bool_dtype is_integer)ABCExtensionArrayABCIndex ABCMultiIndex ABCSeries)iterable_not_string) AnyArrayLike ArrayLikeNpDtype RandomStateT)Indexccs,|D]"}t|r t|EdHq|VqdS)a Flatten an arbitrarily nested sequence. 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