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"""Various utilities (logger, time benchmark, args dump, numerical and stats info)"""
def is_base64(sb):
import base64
try:
if isinstance(sb, str):
# If there's any unicode here, an exception will be thrown and the function will return false
sb_bytes = bytes(sb, 'ascii')
elif isinstance(sb, bytes):
sb_bytes = sb
else:
raise ValueError("Argument must be string or bytes")
return base64.b64encode(base64.b64decode(sb_bytes, validate=True)) == sb_bytes
except ValueError:
return False
def base64_decode(s):
import base64
if isinstance(s, str) and is_base64(s):
return base64.b64decode(s, validate=True).decode("utf-8")
return s
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