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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 _update_meta(conn_string):
 """Update Meta class."""

    url = urlparse(conn_string)
    Meta.conn_string = conn_string
    Meta.DBNAME = url.path[1:]
    Meta.DBUSER = url.username
    Meta.DBPWD = url.password
    Meta.DBHOST = url.hostname
    Meta.DBPORT = url.port
    Meta.postgres = url.scheme.startswith("postgresql")