Filter Keywords with spacings. How to use them?

[someonenameguy]

There's filter keyword for attachments[][name].
How to select it? I tried:

"'Name' in attachment name"
"'Name' in 'attachment name'"
"'Name' in attachmentname"
"'Name' in [attachment name]"
"'Name' in [attachment name]"
"'Name' in attachment[][name]"
"'Name' in attachment[name]"

but none of them worked...

[mikf]

The [] in attachments[][name] means that attachments is a list / an array, so you could theoretically use it as 'Name' in attachments[0]["name"] in a --filter, but you shouldn't do that.

When downloading attachment files (or really any file), their name is usually present in filename + extension, so you can just use 'Name' in filename.