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NOTE: If the stream has been partially read, some data may be re-downloaded by the iterator. :returns: An iterator of the chunks in the download stream. :rtype: Iterator[bytes] .. admonition:: Example: .. literalinclude:: ../samples/blob_samples_hello_world.py :start-after: [START download_a_blob_in_chunk] :end-before: [END download_a_blob_in_chunk] :language: python :dedent: 12 :caption: Download a blob using chunks(). zRStream has been partially read in text mode. chunks is not supported in text mode.z> MMX Y  (?(?  ,,s43H3H/II#&t'<'<#= ,,#$ &&2C. }}))!%!7!799<<::!1!!%!7!7#'#;#; $ 5 5!00 '' O483D3D$//#0&||66 8 8r8cyrcr)r_rs r6readzStorageStreamDownloader.readY r8)charsrcyrcr)r_rs r6rzStorageStreamDownloader.read]rr8c@ |dkDr!|jrtjd|dkDr | td|js | td|jr|dkDr td|jdur | td|d k(s3|d k(s.|j r2|j t|jk\r|jsd Sd S|js||jvd |_tj|jd |_ |jjtt|j|j |_n|jd|_|jr$t}||d krt j"n|}n!t%}|d kDr|nt j"}|t j"k(}d }|j }t't|j|j z ||z }|j)|j|||z}||z }|xj |z c_|xj*|z c_|j-||z } | d kDr|j s |j.|j0z}|j.|j2z} |j4dkD} t7d|j8j:|j<|j2|j>j@|j*|| || |jB|jD|jF|jH|jJd|jL} d|_'| jQ} |r|js| r|j2|j0z |j>j@kDrod dl)}|jTjW|j45}tY|j[t]| j^| jQdddn| D]}| j_||jan@tc| dx}1| d kDr+| je|\}}|xj0t|z c_|xjf|z c_3|jr9|j-|jj||j |_n||_| t|jkr|j)|jd| }n|j)|j}||_|xj*|z c_| |z} |j-tc| dx}| d kDr+|ji}|js8|jr, tt|j|j}|S|S#1swYxYw#tj$rtjdwxYw)a Read the specified bytes or chars from the stream. 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