def __init__(self, key=None, value=None):
self._key = None<EOL>self._value = None<EOL>if key is not None:<EOL><INDENT>self.key = key<EOL><DEDENT>if value is not None:<EOL><INDENT>self.value = value<EOL><DEDENT>
Create a section with the given key and value.

        :param key: section of code key
        :type key: string
        :param value: section of code value
        :type value: string