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‎README.rst

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@@ -17,6 +17,19 @@ Handles multi-API versions of Azure Storage Data Plane originally from https://g
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Change Log
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----------
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0.7.0
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+++++
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* blob:
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- Support v2020-06-12(12.8.1)
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- Support v2020-10-02(12.9.0)
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* fileshare:
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- Minor fix for 2020-04-08(12.5.0)
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- Support v2020-10-02(12.6.0)
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* filedatalake:
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- Minor fix for 2020-02-10(12.3.1)
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- Support v2020-06-12(12.5.0)
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* queue: Minor fix for 2018-03-28(12.1.6)
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0.6.2
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+++++
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* Fix import issue for filedatalake

‎azure/multiapi/storagev2/blob/v2020_06_12/__init__.py

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# -------------------------------------------------------------------------
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# Copyright (c) Microsoft Corporation. All rights reserved.
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# Licensed under the MIT License. See License.txt in the project root for
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# license information.
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# --------------------------------------------------------------------------
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import os
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from typing import Union, Iterable, AnyStr, IO, Any, Dict # pylint: disable=unused-import
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from ._version import VERSION
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from ._blob_client import BlobClient
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from ._container_client import ContainerClient
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from ._blob_service_client import BlobServiceClient
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from ._lease import BlobLeaseClient
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from ._download import StorageStreamDownloader
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from ._quick_query_helper import BlobQueryReader
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from ._shared_access_signature import generate_account_sas, generate_container_sas, generate_blob_sas
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from ._shared.policies import ExponentialRetry, LinearRetry
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from ._shared.response_handlers import PartialBatchErrorException
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from ._shared.models import(
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LocationMode,
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ResourceTypes,
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AccountSasPermissions,
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StorageErrorCode,
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UserDelegationKey
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)
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from ._generated.models import (
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RehydratePriority
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)
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from ._models import (
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BlobType,
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BlockState,
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StandardBlobTier,
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PremiumPageBlobTier,
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SequenceNumberAction,
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PublicAccess,
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BlobAnalyticsLogging,
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Metrics,
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RetentionPolicy,
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StaticWebsite,
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CorsRule,
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ContainerProperties,
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BlobProperties,
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FilteredBlob,
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LeaseProperties,
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ContentSettings,
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CopyProperties,
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BlobBlock,
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PageRange,
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AccessPolicy,
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ContainerSasPermissions,
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BlobSasPermissions,
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CustomerProvidedEncryptionKey,
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ContainerEncryptionScope,
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BlobQueryError,
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DelimitedJsonDialect,
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DelimitedTextDialect,
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ArrowDialect,
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ArrowType,
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ObjectReplicationPolicy,
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ObjectReplicationRule
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)
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from ._list_blobs_helper import BlobPrefix
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__version__ = VERSION
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def upload_blob_to_url(
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blob_url, # type: str
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data, # type: Union[Iterable[AnyStr], IO[AnyStr]]
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credential=None, # type: Any
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**kwargs):
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# type: (...) -> Dict[str, Any]
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"""Upload data to a given URL
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The data will be uploaded as a block blob.
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:param str blob_url:
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The full URI to the blob. This can also include a SAS token.
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:param data:
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The data to upload. This can be bytes, text, an iterable or a file-like object.
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:type data: bytes or str or Iterable
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:param credential:
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The credentials with which to authenticate. This is optional if the
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blob URL already has a SAS token. The value can be a SAS token string,
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an instance of a AzureSasCredential from azure.core.credentials, an account
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shared access key, or an instance of a TokenCredentials class from azure.identity.
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If the resource URI already contains a SAS token, this will be ignored in favor of an explicit credential
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- except in the case of AzureSasCredential, where the conflicting SAS tokens will raise a ValueError.
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:keyword bool overwrite:
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Whether the blob to be uploaded should overwrite the current data.
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If True, upload_blob_to_url will overwrite any existing data. If set to False, the
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operation will fail with a ResourceExistsError.
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:keyword int max_concurrency:
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The number of parallel connections with which to download.
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:keyword int length:
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Number of bytes to read from the stream. This is optional, but
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should be supplied for optimal performance.
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:keyword dict(str,str) metadata:
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Name-value pairs associated with the blob as metadata.
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:keyword bool validate_content:
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If true, calculates an MD5 hash for each chunk of the blob. The storage
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service checks the hash of the content that has arrived with the hash
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that was sent. This is primarily valuable for detecting bitflips on
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the wire if using http instead of https as https (the default) will
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already validate. Note that this MD5 hash is not stored with the
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blob. Also note that if enabled, the memory-efficient upload algorithm
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will not be used, because computing the MD5 hash requires buffering
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entire blocks, and doing so defeats the purpose of the memory-efficient algorithm.
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:keyword str encoding:
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Encoding to use if text is supplied as input. Defaults to UTF-8.
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:returns: Blob-updated property dict (Etag and last modified)
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:rtype: dict(str, Any)
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"""
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with BlobClient.from_blob_url(blob_url, credential=credential) as client:
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return client.upload_blob(data=data, blob_type=BlobType.BlockBlob, **kwargs)
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def _download_to_stream(client, handle, **kwargs):
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"""Download data to specified open file-handle."""
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stream = client.download_blob(**kwargs)
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stream.readinto(handle)
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def download_blob_from_url(
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blob_url, # type: str
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output, # type: str
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credential=None, # type: Any
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**kwargs):
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# type: (...) -> None
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"""Download the contents of a blob to a local file or stream.
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:param str blob_url:
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The full URI to the blob. This can also include a SAS token.
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:param output:
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Where the data should be downloaded to. This could be either a file path to write to,
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or an open IO handle to write to.
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:type output: str or writable stream.
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:param credential:
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The credentials with which to authenticate. This is optional if the
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blob URL already has a SAS token or the blob is public. The value can be a SAS token string,
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an instance of a AzureSasCredential from azure.core.credentials,
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an account shared access key, or an instance of a TokenCredentials class from azure.identity.
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If the resource URI already contains a SAS token, this will be ignored in favor of an explicit credential
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- except in the case of AzureSasCredential, where the conflicting SAS tokens will raise a ValueError.
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:keyword bool overwrite:
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Whether the local file should be overwritten if it already exists. The default value is
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`False` - in which case a ValueError will be raised if the file already exists. If set to
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`True`, an attempt will be made to write to the existing file. If a stream handle is passed
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in, this value is ignored.
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:keyword int max_concurrency:
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The number of parallel connections with which to download.
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:keyword int offset:
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Start of byte range to use for downloading a section of the blob.
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Must be set if length is provided.
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:keyword int length:
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Number of bytes to read from the stream. This is optional, but
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should be supplied for optimal performance.
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:keyword bool validate_content:
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If true, calculates an MD5 hash for each chunk of the blob. The storage
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service checks the hash of the content that has arrived with the hash
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that was sent. This is primarily valuable for detecting bitflips on
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the wire if using http instead of https as https (the default) will
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already validate. Note that this MD5 hash is not stored with the
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blob. Also note that if enabled, the memory-efficient upload algorithm
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will not be used, because computing the MD5 hash requires buffering
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entire blocks, and doing so defeats the purpose of the memory-efficient algorithm.
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:rtype: None
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"""
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overwrite = kwargs.pop('overwrite', False)
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with BlobClient.from_blob_url(blob_url, credential=credential) as client:
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if hasattr(output, 'write'):
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_download_to_stream(client, output, **kwargs)
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else:
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if not overwrite and os.path.isfile(output):
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raise ValueError("The file '{}' already exists.".format(output))
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with open(output, 'wb') as file_handle:
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_download_to_stream(client, file_handle, **kwargs)
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__all__ = [
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'upload_blob_to_url',
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'download_blob_from_url',
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'BlobServiceClient',
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'ContainerClient',
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'BlobClient',
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'BlobType',
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'BlobLeaseClient',
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'StorageErrorCode',
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'UserDelegationKey',
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'ExponentialRetry',
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'LinearRetry',
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'LocationMode',
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'BlockState',
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'StandardBlobTier',
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'PremiumPageBlobTier',
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'SequenceNumberAction',
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'PublicAccess',
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'BlobAnalyticsLogging',
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'Metrics',
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'RetentionPolicy',
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'StaticWebsite',
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'CorsRule',
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'ContainerProperties',
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'BlobProperties',
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'BlobPrefix',
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'FilteredBlob',
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'LeaseProperties',
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'ContentSettings',
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'CopyProperties',
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'BlobBlock',
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'PageRange',
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'AccessPolicy',
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'ContainerSasPermissions',
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'BlobSasPermissions',
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'ResourceTypes',
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'AccountSasPermissions',
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'StorageStreamDownloader',
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'CustomerProvidedEncryptionKey',
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'RehydratePriority',
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'generate_account_sas',
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'generate_container_sas',
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'generate_blob_sas',
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'PartialBatchErrorException',
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'ContainerEncryptionScope',
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'BlobQueryError',
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'DelimitedJsonDialect',
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'DelimitedTextDialect',
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'ArrowDialect',
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'ArrowType',
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'BlobQueryReader',
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'ObjectReplicationPolicy',
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'ObjectReplicationRule'
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]

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