$post_author: WP_User Object
(
    [data] => stdClass Object
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            [ID] => 229
            [user_login] => ryan-mcmaken
            [user_pass] => $P$B3wZ6WvAJnE58LtpnZo0Ipee8Byy/s0
            [user_nicename] => ryan-mcmaken
            [user_email] => [email protected]
            [user_url] => 
            [user_registered] => 2011-12-07 16:12:27
            [user_activation_key] => 1548110793:$P$BZk9Ug0Mt8j2Wu/UbicN.j.JnbG6jQ1
            [user_status] => 0
            [display_name] => Ryan McMaken
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    [cap_key] => wp_capabilities
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get_the_author_meta: 

$bio: Ryan W. McMaken is the editor of Mises Daily and The Austrian. Send him mail.

$bios: Array
(
    [0] => Ryan W. McMaken is the editor of Mises Daily and The Austrian. Send him mail.
)

Ryan W. McMaken is the editor of Mises Daily and The Austrian. Send him mail.