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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _process_layout(self, layout):
 """Process an LTPage layout and return a list of elements."""

        # Here we just group text into paragraphs
        elements = []
        for lt_obj in layout:
            if isinstance(lt_obj, LTTextBox) or isinstance(lt_obj, LTTextLine):
                elements.append(Paragraph(lt_obj.get_text().strip()))
            elif isinstance(lt_obj, LTFigure):
                # Recursive...
                elements.extend(self._process_layout(lt_obj))
        return elements