as_id.googlesheets4_spreadsheet: Extract the file id from Sheet metadata
Description
This method implements googledrive::as_id() for the class used here to hold
metadata for a Sheet. It just calls as_sheets_id(), but it's handy in case
you forget that exists and hope that as_id() will "just work".
Usage
# S3 method for googlesheets4_spreadsheet
as_id(x, ...)
Arguments
x
An instance of googlesheets4_spreadsheet, which is returned by,
e.g., gs4_get().
...
Other arguments passed down to methods. (Not used.)