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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 set_default_timeout(timeout=None, connect_timeout=None, read_timeout=None):
 """ The purpose of this function is to install default socket timeouts and retry policy for requests calls. Any requests issued through the requests wrappers defined in this module will have these automatically set, unless explicitly overriden. The default timeouts and retries set through this option apply to the entire process. For that reason, it is recommended that this function is only called once during startup, and from the main thread, before any other threads are spawned. :param timeout timeout for socket connections and reads in seconds. This is a convenience argument that applies the same default to both connection and read timeouts. :param connect_timeout timeout for socket connections in seconds. :param read_timeout timeout for socket reads in seconds. """

    global DEFAULT_CONNECT_TIMEOUT
    global DEFAULT_READ_TIMEOUT
    DEFAULT_CONNECT_TIMEOUT = connect_timeout if connect_timeout is not None \
        else timeout
    DEFAULT_READ_TIMEOUT = read_timeout if read_timeout is not None \
        else timeout