pandas.Panel.squeeze
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Panel.squeeze(axis=None)[source]
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Squeeze length 1 dimensions. Parameters: axis : None, integer or string axis name, optional The axis to squeeze if 1-sized. New in version 0.20.0. Returns: scalar if 1-sized, else original object 
    © 2008–2012, AQR Capital Management, LLC, Lambda Foundry, Inc. and PyData Development Team
Licensed under the 3-clause BSD License.
    https://pandas.pydata.org/pandas-docs/version/0.20.3/generated/pandas.Panel.squeeze.html