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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 text(self):
 """ String formed by concatenating the text of each run in the paragraph. Tabs and line breaks in the XML are mapped to ``\\t`` and ``\\n`` characters respectively. Assigning text to this property causes all existing paragraph content to be replaced with a single run containing the assigned text. A ``\\t`` character in the text is mapped to a ``<w:tab/>`` element and each ``\\n`` or ``\\r`` character is mapped to a line break. Paragraph-level formatting, such as style, is preserved. All run-level formatting, such as bold or italic, is removed. """

        text = ''
        for run in self.runs:
            text += run.text
        return text