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d�ZdS)z�Generate cryptographically strong pseudo-random numbers suitable for
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rcCst�t|���d�S)a"Return a random text string, in hexadecimal.
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'f9bf78b9a18ce6d46a0cd2b0b86df9da'
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r0srcCst|�}t�|��d��d�S)z�Return a random URL-safe text string, in Base64 encoding.
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'Drmhze6EPcv0fN_81Bj-nA'
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