interface Deno.WriteFileOptions
          
Options for writing to a file.
optional
append: boolean = false
      
    If set to true, will append to a file instead of overwriting previous
contents.
optional
create: boolean = true
      
    Sets the option to allow creating a new file, if one doesn't already exist at the specified path.
optional
createNew: boolean = false
      
    If set to true, no file, directory, or symlink is allowed to exist at
the target location. When createNew is set to true, create is ignored.
optional
mode: number
      
    Permissions always applied to file.
optional
signal: AbortSignal
      
    An abort signal to allow cancellation of the file write operation.
If the signal becomes aborted the write file operation will be stopped
and the promise returned will be rejected with an AbortError.