Telehashname.is_valid_csid-question-mark

You're seeing just the function is_valid_csid-question-mark, go back to Telehashname module for more information.

Specs

is_valid_csid?(term()) :: boolean()

Determine if something looks like a valid CSID

Confirms form only, not validity. Some functions be more liberal in what they accept, but confirming validity is always better.