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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 show_metadata_converter(self):
 """Show InaSAFE Metadata Converter."""

        from safe.gui.tools.metadata_converter_dialog import (
            MetadataConverterDialog)
        dialog = MetadataConverterDialog(
            parent=self.iface.mainWindow(),
            iface=self.iface,
        )
        dialog.exec_()