*save the content of the document back to the file*

        **Key Arguments:**
            - ``copypath`` -- the path to a new file if you want to make a copy of the document instead of saving it to the original filepath. Default *None*


        **Usage:**

            To save the document to file run:

            .. code-block:: python

                doc.save()

            Or to copy the content to another file run the save method with a new filepath as an argument:

            .. code-block:: python

                doc.save("/path/to/saturday-tasks-copy.taskpaper")

def save(
            self,
            copypath=None):
        """*save the content of the document back to the file*

        **Key Arguments:**
            - ``copypath`` -- the path to a new file if you want to make a copy of the document instead of saving it to the original filepath. Default *None*


        **Usage:**

            To save the document to file run:

            .. code-block:: python

                doc.save()

            Or to copy the content to another file run the save method with a new filepath as an argument:

            .. code-block:: python

                doc.save("/path/to/saturday-tasks-copy.taskpaper")
        """
        self.refresh
        if copypath:
            self.filepath = copypath

        content = self.content

        import codecs
        # SET ENCODE ERROR RETURN VALUE
        writeFile = codecs.open(self.filepath, encoding='utf-8', mode='w')
        writeFile.write(content)
        writeFile.close()

        return None