def check_channel(channel, filter_set):
    """
    This function checks to see if a channel the user is asking to make a field
        for is an allowed channel to ask for.
    Parameters:
        channel (str, required): The atomic channel being requested
        filter_set (dict, required): The set of defined atomic filters
    Returns:
        boolean: indicator for if the channel is allowed
    """
    channel_allowed = False
    for key in filter_set:
        if channel in filter_set[key]:
            channel_allowed = True

    return channel_allowed