Unicode.Property.alphanumeric
You're seeing just the function
alphanumeric, go back to Unicode.Property module for more information.
Returns :alphanumeric or nil based upon
whether the given codepoint or binary
is all alphanumeric characters.
This is useful when the desired result is
truthy or falsy
Example
iex> Unicode.Property.alphanumeric "123abc"
:alphanumeric
iex> Unicode.Property.alphanumeric "???"
nil