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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 schema_columns(self):
 """Return column informatino only from this schema"""

        t = self.schema_term

        columns = []


        if t:
            for i, c in enumerate(t.children):

                if c.term_is("Table.Column"):
                    p = c.all_props
                    p['pos'] = i
                    p['name'] = c.value
                    p['header'] = self._name_for_col_term(c, i)
                    

                    columns.append(p)

        return columns