# Class Netmime.file_mime_body

    class file_mime_body : ?ro:bool -> ?fin:bool -> string -> mime_body

An implementation of `mime_body` where the value is stored in an external file.

The argument is the name of the file containing the (decoded) value. The method `store` returns ``File filename`. The method `value` loads the contents of the file and returns them as string.

Example: To create a body from the file "f", call

     new file_mime_body "f"

`ro` : whether the body is read-only (default: false)
`fin` : whether to delete the file when the `finalize` method is called (default: false)