:   '''[after] info''' ?''id''?

This command returns information about existing event handlers. If no ''id'' argument is supplied, the command returns a list of the identifiers for all existing event handlers created by the '''[after]''' command for this interpreter. If ''id'' is supplied, it specifies an existing handler; ''id'' must have been the return value from some previous call to '''[after]''' and it must not have triggered yet or been cancelled. In this case the command returns a list with two elements. The first element of the list is the script associated with ''id'', and the second element is either '''idle''' or '''timer''' to indicate what kind of event handler it is.

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**See also**
   * [after]
   * [after cancel]
   * [after idle]
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