Return the value for an option from the context if the option
    or `--all` is given, else return None.

def from_like_context(ctx, param, value):
    """Return the value for an option from the context if the option
    or `--all` is given, else return None."""
    if ctx.obj and ctx.obj.get("like") and (value == "like" or ctx.obj.get("all_like")):
        return ctx.obj["like"][param.name]
    else:
        return None