location_idstring · requiredStorage location ID from `android_list_storage_locations`
Appends text content to an existing file. If the storage provider does not support append mode, an error with a hint to use `android_write_file` is returned.
location_idstring · requiredStorage location ID from `android_list_storage_locations`
pathstring · requiredRelative path to the file within the storage location
contentstring · requiredText content to append