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o �`^� � @ s� d Z eZg d�ZddlmZ ddlmZ ddlm Z m Z zddl m Z m Z mZmZmZ W n eyG ddl m Z m Z mZ ddlmZmZ Y nw dd lZejd d krXeZeZneZeZdd lmZ dd l m Z dd l m Z ddl!m"Z"m#Z# ddl$m%Z% ddl&m'Z' e(� Z)G dd� d�Z*G dd� d�Z+G dd� de+�Z G dd� de �Z,G dd� de �Z-G dd � d e �Z.G d d � d e+�Z/G d d � d e �Z0G d!d"� d"e �Z1G d#d$� d$e1�Z2G d%d&� d&e�Z3d S )'z)Common support for web service resources.)� Collection� CollectionWithKeyBasedLookup�Entry�NamedOperation�Resource� ServiceRoot� )�Message)�BytesIO)�dumps�loads)�urljoin�urlparse�parse_qs�unquote� urlencode)r r r )r r N� )�URI)r )� __version__)�Browser� RestfulHttp)�DatetimeJSONEncoder)� HTTPErrorc @ s* e Zd ZdZdd� Zd dd�Zdd� ZdS ) �HeaderDictionarya� A dictionary that bridges httplib2's and wadllib's expectations. httplib2 expects all header dictionary access to give lowercase header names. wadllib expects to access the header exactly as it's specified in the WADL file, which means the official HTTP header name. This class transforms keys to lowercase before doing a lookup on the underlying dictionary. That way wadllib can pass in the official header name and httplib2 will get the lowercased name. c C s || _ d S �N)�wrapped_dictionary)�selfr � r �=/usr/lib/python3/dist-packages/lazr/restfulclient/resource.py�__init__I s zHeaderDictionary.__init__Nc C s | j �|�� �S �z2Retrieve a value, converting the key to lowercase.)r �get�lower)r �key�defaultr r r r L s zHeaderDictionary.getc C s | � |t�}|tu rt|��|S r )r �missing�KeyError)r r" �valuer r r � __getitem__P s z HeaderDictionary.__getitem__r )�__name__� __module__� __qualname__�__doc__r r r' r r r r r > s r c @ s$ e Zd ZdZdZdd� Zdd� ZdS )� RestfulBasez=Base class for classes that know about lazr.restful services.�application/jsonc C s8 i }|� � D ]\}}t|t�r|j}||| �|�< q|S r )�items� isinstancer � self_link�_get_external_param_name)r � dictionary�new_dictionaryr" r& r r r � _transform_resources_to_links] s z)RestfulBase._transform_resources_to_linksc C � |S )a Turn a lazr.restful name into something to be sent over HTTP. For resources this may involve sticking '_link' or '_collection_link' on the end of the parameter name. For arguments to named operations, the parameter name is returned as is. r �r � param_namer r r r1 e s z$RestfulBase._get_external_param_nameN)r( r) r* r+ �JSON_MEDIA_TYPEr4 r1 r r r r r, X s r, c @ s� e Zd ZdZdd� Ze� Ze� Ze� Ze dd� �Z e dd� �Z e dd � �Z e d d � �Z e d d � �Ze Zdd� Zdd� Zdd� Zdd� Ze d'dd��Zd(dd �Zd d � Zd d � Zd!d"� Zd#d$� Zd%d&� ZdS ))r z+Base class for lazr.restful HTTP resources.c C s$ |du r| }|| j d< || j d< dS )z5Initialize with respect to a wadllib Resource object.N�_root�_wadl_resource)�__dict__�r �root� wadl_resourcer r r r s s zResource.__init__c C � | � | j�S )z,Name the collections this resource links to.)�_get_parameter_names�FIND_COLLECTIONS�r r r r �lp_collections� � zResource.lp_collectionsc C r? )z(Name the entries this resource links to.)r@ � FIND_ENTRIESrB r r r � lp_entries� rD zResource.lp_entriesc C r? )z'Name this resource's scalar attributes.)r@ �FIND_ATTRIBUTESrB r r r � lp_attributes� rD zResource.lp_attributesc C s� g }| j jD ]E}|j�� }|dkr|j�ddg�}n |dkr9dD ]}|j�|�}|dur2|�� } nq |�| j �}|D ]}|jdkrJ|�|j � nq;q|S )z.Name all of this resource's custom operations.r �query�plain�post)�!application/x-www-form-urlencoded�multipart/form-dataN�ws.op) r: � method_iter�namer! �request�params� get_representation_definition�resolve_definition�append� fixed_value)r �names�methodrP rR � media_type� definition�paramr r r � lp_operations� s, �� ��zResource.lp_operationsc C s | � | j| j| j�S )z;A hook into dir() that returns web service-derived members.)r@ rA rE rG rB r r r � __members__� s �zResource.__members__c G s� g }| j �| j�D ]@}|j}|j}|dkr?|dur?|jr?|�d�r0| j|v r/|�|dd� � q | j |v r>|�|dd� � q | j |v rI|�|� q |S )z2Retrieve some subset of the resource's parameters.r0 N�_collection_linki����) r: � parametersr8 rP �link� can_follow�endswithrA rU rE rG )r �kindsrW � parameterrP ra r r r r@ � s( �� � � �z Resource._get_parameter_namesc C s | � |�duS )z8Does this resource have a parameter with the given name?N)r1 r6 r r r �lp_has_parameter� s zResource.lp_has_parameterc C s� | � � dD ]6}| j�|| �}|dur<z|�� W n ty# Y qw |�� du r- dS |j}| j| j||jd� S q| j�|�}|du rMtd| ��|�� S )z�Get the value of one of the resource's parameters. :return: A scalar value if the parameter is not a link. A new Resource object, whose resource is bound to a representation, if the parameter is a link. )�_linkr^ N)r7 zNo such parameter: %s) �_ensure_representationr: � get_parameter� get_valuer% �linked_resource�_create_bound_resourcer9 rP )r r7 �suffixr[ rk r r r �lp_get_parameter� s, � � �� zResource.lp_get_parameterc C sR d|i}| j jd|d�}|du r| j jd|d�}|du r"td| ��t| j| |�S )z�Get a custom operation with the given name. :return: A NamedOperation instance that can be called with appropriate arguments to invoke the operation. rN r )� query_paramsNrK )�representation_paramszNo operation with name: %s)r: � get_methodr% r r9 )r �operation_namerR rX r r r �lp_get_named_operation� s � z Resource.lp_get_named_operationNr- Tc C sl |j }t|�d } t} |�d�s|dur|�d�rt} |j�| | �} |dur0|j||||d�}n | ||�S )a Create a lazr.restful Resource subclass from a wadllib Resource. :param resource: The wadllib Resource to wrap. :param representation: A previously fetched representation of this resource, to be reused. If not provided, this method will act just like the Resource constructor. :param representation_media_type: The media type of any previously fetched representation. :param representation_needs_processing: Set to False if the 'representation' parameter should be used as is. :param representation_definition: A wadllib RepresentationDefinition object describing the structure of this representation. Used in cases when the representation isn't the result of sending a standard GET to the resource. :param param_name: The name of the link that was followed to get to this resource. :return: An instance of the appropriate lazr.restful Resource subclass. ���z-pageNr^ )�representation_definition)�type_urlr r rc r �RESOURCE_TYPE_CLASSESr �bind) �clsr= �resource�representation�representation_media_type� representation_needs_processingru r7 rv � resource_typer# �r_classr r r rl s" �� z Resource._create_bound_resourcec C sd |dur|| j _i }|dur||d< | jjj| j |d�}|| jjjkr%dS | j �|| j�| jd< dS )�&Update this resource's representation.Nz If-None-Match)�headersr: ) r: �_urlr9 �_browserr � NOT_MODIFIEDrx r8 r; )r �new_url�etagr� r{ r r r � lp_refresh< s ��zResource.lp_refreshc C sL z| � |�W S ty Y nw z| �|�W S ty% td| |f ��w )z@Try to retrive a named operation or parameter of the given name.z %s object has no attribute '%s')rs r% rn �AttributeError)r �attrr r r � __getattr__M s � ��zResource.__getattr__c C s4 | j �|| j�}|j}t|�dkrdd� |D �S dS )z0Find the set of possible values for a parameter.r c S s g | ]}|j �qS r )r& )�.0�optionr r r � <listcomp>_ s z*Resource.lp_values_for.<locals>.<listcomp>N)r: ri r8 �options�len)r r7 re r� r r r � lp_values_forY s � zResource.lp_values_forc C s* dD ]}|| }| j �|�r| S qdS )z>What's this parameter's name in the underlying representation?)rg r^ � N)r: ri )r r7 rm rP r r r r1 b s �z!Resource._get_external_param_namec C s� | j jdu rJ| jj�| j �}t|t�r|�d�}t|�}t|t �r;|d }|dur;|| j j kr;| jj � |�}|j | j _ | j j|| jdd�| jd< dS dS )z5Make sure this resource has a representation fetched.N�utf-8�resource_type_linkF�r} r: )r: r{ r9 r� r r/ � binary_type�decoder �dictrv �_wadl�get_resource_type�tagrx r8 r; )r r{ � type_linkr~ r r r rh j s$ � ��z Resource._ensure_representationc C s | |k S )zInequality operator.r �r �otherr r r �__ne__� s zResource.__ne__)Nr- TNN�NN) r( r) r* r+ r �objectrA rE rG �propertyrC rF rH r\ r] � __methods__r@ rf rn rs � classmethodrl r� r� r� r1 rh r� r r r r r p sB $ � 4 r c @ s e Zd ZdZedd� �ZdS )� ScalarValuez.A resource representing a single scalar value.c C s | � � | jjS )zReturn the scalar value.)rh r: r{ rB r r r r& � s zScalarValue.valueN)r( r) r* r+ r� r& r r r r r� � s r� c @ s2 e Zd ZdZd dd�Zdd� Zdd � Zd d � ZdS ) � HostedFilezAA resource representing a file managed by a lazr.restful service.�rNc C s |dv r t | |||�S td��)z5Open the file on the server for read or write access.)r� �w�'Invalid mode. Supported modes are: r, w)�HostedFileBuffer� ValueError)r �mode� content_type�filenamer r r �open� s zHostedFile.openc C s | j j�| jj� dS )z Delete the file from the server.N)r9 r� �deleter: �urlrB r r r r� � � zHostedFile.deletec G s g S )z4HostedFile objects define no web service parameters.r )r rd r r r r@ � � z HostedFile._get_parameter_namesc C s |duo | j j|j jkS )a Equality comparison. Two hosted files are the same if they have the same URL. There is no need to check the contents because the only way to retrieve or modify the hosted file contents is to open a filehandle, which goes direct to the server. N)r: r� r� r r r �__eq__� s �zHostedFile.__eq__)r� NN)r( r) r* r+ r� r� r@ r� r r r r r� � s r� c sV e Zd ZdZeed�Zdddddejf� fdd� Z e dd� �Z d d � Z d d � Z � ZS ) r z�Entry point to the service. Subclass this for a service-specific client. :ivar credentials: The credentials instance used to access Launchpad. )r� r� Nr� c s� |dur |d dkr|d7 }|t |�7 }|d dkr |d7 }t|�| _|| _|| _t| ||||| j|�| _| j�| j�| _ | j � d�} | � | j� | �d�} t t| ��d| � dS )z�Root access to a lazr.restful API. :param credentials: The credentials used to access the service. :param service_root: The URL to the root of the web service. :type service_root: string Nrt �/r� r- )�strr � _root_uri�_base_client_name� credentialsr � _user_agentr� �get_wadl_applicationr� �get_resource_by_pathrx r �superr r ) r � authorizer� service_root�cache�timeout� proxy_info�version�base_client_name� max_retries� root_resource� bound_root�� __class__r r r � s& � �zServiceRoot.__init__c C sp dt }| jdkr| jd | d }t� }||d< | jdur4| jj}t|�D ] }|| }|�||d� q&|d S )a� The value for the User-Agent header. This will be something like: launchpadlib 1.6.1, lazr.restfulclient 1.0.0; application=apport That is, a string describing lazr.restfulclient and an optional custom client built on top, and parameters containing any authorization-specific information that identifies the user agent (such as the application name). zlazr.restfulclient %sr� z (�)z User-AgentN)r r� r r� �user_agent_params�sorted� set_param)r � base_portion�messager� r" r& r r r r� � s zServiceRoot._user_agentc C s t ||||�S r )r )r r� r� r� r� r r r � httpFactory� s zServiceRoot.httpFactoryc C s� t |�}|jdkr |dd� dkr|dd� }t| j�|��}| j�|�}t|t�r/|� d�}zt |�}W n t yB t d| ��w |�d�}|du rRt d| ��| j j �|�}t| j j ||j�}| j| j ||d d d �S ) z Load a resource given its URL.r� N� r� r� z!%s doesn't serve a JSON document.r� z+Couldn't determine the resource type of %s.r- Fr� )r �schemer� r� rU r� r r/ r� r� r r� r9 r� r� � WadlResourcer� rl )r r� �parsed�documentr{ r� r~ r> r r r �load� s0 � � �zServiceRoot.load)r( r) r* r+ r� r� rw r � MAX_RETRIESr r� r� r� r� � __classcell__r r r� r r � s ��! r c @ s8 e Zd ZdZdd� Zdd� Zdd� Zdd � Zd d � Zd S ) r z=A class for a named operation to be invoked with GET or POST.c C s || _ || _|| _dS )z/Initialize with respect to a WADL Method objectN)r= rz � wadl_method)r r= rz r� r r r r s zNamedOperation.__init__c O s| t |�dkr td��| jj}| �|�}| jj}|dv r |j}n |�d�}|du r-|�d�}|dus5J d��|�| j j �}t dd � |D ��}|� � D ]\}} ||vrYt | td �||< qI|dv rl| jjdi |��} d } i } n| j�� } | jjdi |��\} } d | i} | jjj| | |�� | d �\}}|jdkr�| �| ||�S |dkr�|jdkr�|d } | jj�| �\}}n| j �� | �| ||�S )z)Invoke the method and process the result.r z(Method must be called with keyword args.)r �headr� rM NrL zYA POST named operation must define a multipart or form-urlencoded request representation.c S s* g | ]}|j d kst|j�dkr|j�qS )�binaryr )�typer� r� rP )r� r[ r r r r� 5 s �z+NamedOperation.__call__.<locals>.<listcomp>)ry r� z Content-type)� extra_headers�� rK �- �locationr )r� � TypeErrorr� rP r4 rQ ro rS rR rz r: �setr. r r �build_request_url�build_representationr= r� �_request�upper�status�_handle_201_responser� �_handle_200_response)r �args�kwargs� http_methodrQ rR rZ �send_as_is_paramsr" r& r� �in_representationr� rY �response�contentr r r �__call__ s\ �� �� �� � zNamedOperation.__call__c C sL | j j�t|��}|�d�}|j}| jj�|j �\}}t � | j|||d �S )z5Handle the creation of a new resource by fetching it.�Location� content-type) r� r� rx r ri rk r= r� r� r� r rl )r r� r� r� � wadl_response�wadl_parameterr> r r r r� b s � ��z#NamedOperation._handle_201_responsec C s� |d }| j j}|�|�}|du r&|| jkr$t|t�r |�d�}t|�S |S t|t�r0|�d�}t|�}|du r:|S d|v rYd|v rY|d }| jj � |d �}t | jj ||j �} n |� � }t | jj ||j �} tj| j| ||d|d�S )z)Process the return value of an operation.r� Nr� r0 r� F)r} ru )r� r� rS r8 r/ r� r� r r= r� r� r� r� rT r rl ) r r� r� r� r� �response_definitionru r� r~ r> r r r r� p sF �� � � � � �z#NamedOperation._handle_200_responsec C r5 )z/Named operation parameter names are sent as is.r r6 r r r r1 � r� z'NamedOperation._get_external_param_nameN) r( r) r* r+ r r� r� r� r1 r r r r r s B 6r c sj e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Z� fd d �Zd d � Z dd� Z d� fdd� Z dd� Z � Z S )r zBA class for an entry-type resource that can be updated with PATCH.c s2 t t| ��||� i | jd< t t| ��||� d S )N�_dirty_attributes)r� r r r; r< r� r r r � s zEntry.__init__c C s dt | j�j| jf S )z:Return the WADL resource type and the URL to the resource.z <%s at %s>)r r� �fragmentr0 rB r r r �__repr__� s �zEntry.__repr__c C s | j j�t| j��S )zDelete the resource.)r9 r� r� r r0 rB r r r � lp_delete� s zEntry.lp_deletec C s | j S )z Return the URL to the resource.)r0 rB r r r �__str__� � z Entry.__str__c s, |dkr|| j v r| j | S tt| ��|�S )z-Try to retrive a parameter of the given name.r� )r� r� r r� )r rP r� r r r� � s zEntry.__getattr__c C s, | � |�std| jj|f ��|| j|< dS )z$Set the parameter of the given name.z!'%s' object has no attribute '%s'N)rf r� r� r( r� )r rP r& r r r � __setattr__� s �zEntry.__setattr__c C s, |duo| j |j ko| j|jko| j|jkS )z�Equality operator. Two entries are the same if their self_link and http_etag attributes are the same, and if their dirty attribute dicts contain the same values. N)r0 � http_etagr� r� r r r r� � s � � �z Entry.__eq__Nc s, t | dd�}tt| ��||� | j�� dS )r� r� N)�getattrr� r r� r� �clear)r r� r� r� r r r� � s zEntry.lp_refreshc C s� | � | j�}i }t| dd�}|dur||d< | jj�t| j�||�\}}|jdkr0| � |d � | j� � |d }|jdkr[|| j kr]t |t �rM|�d�}t|�}|| j_|| j_dS dS dS ) zSave changes to the entry.r� NzIf-Matchr� r� r� �� r� )r4 r� r� r9 r� �patchr r0 r� r� r� r8 r/ r� r� r r: r{ rY )r r{ r� r� r� r� r� �new_representationr r r �lp_save� s* � � �z Entry.lp_saver )r( r) r* r+ r r� r� r� r� r� r� r� r r� r r r� r r � s r c sP e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Zd d � Zd d � Z dd� Z � Z S )r z4A collection-type resource that supports pagination.c s t t| ��||� dS )zCreate a collection object.N)r� r r r< r� r r r r� zCollection.__init__c C s, | j }t|t�r |S t|t�r|jS td��)znThe number of items in the collection. :return: length of the collection :rtype: int z collection size is not available)� total_sizer/ �intr� r& r� )r r r r r �__len__ s zCollection.__len__c c sx � | � � | jj} | �|�di ��D ]}|V q|�d�}|du r$dS | jj�t|��}t|t �r7|� d�}t |�}q )zqIterate over the items in the collection. :return: iterator :rtype: sequence of `Entry` T�entries�next_collection_linkNr� ) rh r: r{ �_convert_dicts_to_entriesr r9 r� r r/ r� r� r )r � current_pagerz � next_link�next_getr r r �__iter__$ s � � �zCollection.__iter__c C sD t |t�r | �|�S | �t||d ��}t|�dkr td��|d S )ac Look up a slice, or a subordinate resource by index. To discourage situations where a lazr.restful client fetches all of an enormous list, all collection slices must have a definitive end point. For performance reasons, all collection slices must be indexed from the start of the list rather than the end. r� zlist index out of ranger )r/ �slice� _get_slicer� � IndexError)r r" � found_slicer r r r' 8 s zCollection.__getitem__c C s� |j pd}|j}|dk rtd��|dk rtd��| jj}|dur<|t|d �k r<|d }t|�}|||� }|�d�}n d}g }| �| jjd|�}|| } | t|� } | dkr�|dur�| j j �|�} t | t �rl| � d�} t| �} | d } || d| � 7 }| t|� } | �d�}|du r�n |du r�t| �}| dkr�| |k r�| �|d | �}| dkr�|dus[|jdur�|dd|j� }d d � | �|�D �S ) z!Retrieve a slice of a collection.r z6Collection slices must have a nonnegative start point.z>Collection slices must have a definite, nonnegative end point.Nr r zws.startr� zws.sizec S s g | ]}|�qS r r )r� rz r r r r� � s z)Collection._get_slice.<locals>.<listcomp>)�start�stopr� r: r{ r� r � _with_url_query_variable_setr� r9 r� r/ r� r� r �stepr )r r r r �existing_representation� entry_page�first_page_size� entry_dicts�page_url� desired_size� more_needed�page_getr{ �current_page_entriesr r r r J sV � �� �zCollection._get_slicec c s\ � |D ](}|d }|d }| j j}|�|�}t| j j||j�}t�| j||| jd�V qdS )a Convert dictionaries describing entries to Entry objects. The dictionaries come from the 'entries' field of the JSON dictionary you get when you GET a page of a collection. Each dictionary is the same as you'd get if you sent a GET request to the corresponding entry resource. So each of these dictionaries can be treated as a preprocessed representation of an entry resource, and turned into an Entry instance. :yield: A sequence of Entry instances. r0 r� FN) r: � applicationr� r� r� r rl r9 r8 )r r � entry_dict� resource_urlr� �wadl_applicationr~ rz r r r r � s" � �� ��z$Collection._convert_dicts_to_entriesc C sB t |�}|jdu r i }nt|j�}t|�||< t|d�|_t|�S )z1A helper method to set a query variable in a URL.NT)r rI r r� r )r r� �variable� new_value�urirR r r r r � s z'Collection._with_url_query_variable_set) r( r) r* r+ r r r r' r r r r� r r r� r r s Ur c s4 e Zd ZdZ� fdd�Zdd� ZdZdd� Z� ZS ) r z�A collection-type resource that supports key-based lookup. This collection can be sliced, but any single index passed into __getitem__ will be treated as a custom lookup key. c s� t |t�r tt| ��|�S z| �|�}W n ty td��w |du r(t|��| |�}z|� � W |S t yJ } z |j j dkrEt|��� d}~ww )z8Look up a slice, or a subordinate resource by unique ID.�unsubscriptable objectN� ) r/ r r� r r' �_get_url_from_id�NotImplementedErrorr� r% rh r r� r� )r r" r� � shim_resource�er� r r r' � s& � � ��z(CollectionWithKeyBasedLookup.__getitem__c C s� z| � |�}W n ty td��w |du rt|��| jdur.d}t| jjjd| j �}n3z| jj � |�}t |t �r@|� d�}t|�}W n ty\ } z |jjdkrWt|��� d}~ww |d }t| jj||�}| j| j||dd�S ) z=Retrieve a member from this collection without looking it up.r& N�#r� r' r� F)r{ r} )r( r) r� r� � collection_ofr r9 r� � markup_urlr� r r/ r� r� r r r� r� r% r� rl )r r" r� r{ r� �url_get�errorrz r r r r� � s: � � ���z%CollectionWithKeyBasedLookup.__call__Nc C s t � �)z2Transform the unique ID of an object into its URL.)r) )r r" r r r r( r� z-CollectionWithKeyBasedLookup._get_url_from_id) r( r) r* r+ r' r� r- r( r� r r r� r r � s 0r c @ s* e Zd ZdZd dd�Zdd� Zdd� ZdS ) r� z8The contents of a file hosted by a lazr.restful service.Nc C s� |j j| _|dkrB|d urtd��|d urtd��|jjj| jdd�\}}|d }|�d�}|d }t|�d } t| �d �d �}n |d kr[d }|d u rPtd��|d u rXtd��d }ntd��|| _ || _ || _ || _ || _ t�| |� d S )Nr� z8Files opened for read access can't specify content_type.z4Files opened for read access can't specify filename.T)�return_responser� z last-modifiedzcontent-location� r� rt r� r� z8Files opened for write access must specify content_type.z4Files opened for write access must specify filename.r� )r: r� r� r9 r� r r r �split� hosted_filer� r� r� � last_modifiedr r ) r r4 r� r� r� r� r& r5 �content_location�pathr r r r s8 � zHostedFileBuffer.__init__c C sD | j dkrd| j }| jjj�| j| �� | jd|i� t � | � d S )Nr� zattachment; filename="%s"zContent-Disposition) r� r� r4 r9 r� �putr� �getvaluer� r �close)r � dispositionr r r r: B s �zHostedFileBuffer.closec C s t �| |� d S r )r �write)r �br r r r< J s zHostedFileBuffer.writer� )r( r) r* r+ r r: r< r r r r r� s ( r� )4r+ r� � __metaclass__�__all__� email.messager �ior �jsonr r � urllib.parser r r r r � ImportError�urllib�sys� version_infor� � text_type�bytesr� �unicode�lazr.urir �wadllib.applicationr r� �lazr.restfulclientr �lazr.restfulclient._browserr r �lazr.restfulclient._jsonr �lazr.restfulclient.errorsr r� r$ r r, r� r� r r r r r r� r r r r �<module> sP � c ` :T
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