Get the resource's tag value specifying its schedule.

def get_tag_value(self, i):
        """Get the resource's tag value specifying its schedule."""
        # Look for the tag, Normalize tag key and tag value
        found = False
        for t in i.get('Tags', ()):
            if t['Key'].lower() == self.tag_key:
                found = t['Value']
                break
        if found is False:
            return False
        # enforce utf8, or do translate tables via unicode ord mapping
        value = found.lower().encode('utf8').decode('utf8')
        # Some folks seem to be interpreting the docs quote marks as
        # literal for values.
        value = value.strip("'").strip('"')
        return value