def update_rule(RuleId=None, ChangeToken=None, Updates=None):
    """
    Inserts or deletes  Predicate objects in a Rule . Each Predicate object identifies a predicate, such as a  ByteMatchSet or an  IPSet , that specifies the web requests that you want to allow, block, or count. If you add more than one predicate to a Rule , a request must match all of the specifications to be allowed, blocked, or counted. For example, suppose you add the following to a Rule :
    You then add the Rule to a WebACL and specify that you want to block requests that satisfy the Rule . For a request to be blocked, the User-Agent header in the request must contain the value BadBot and the request must originate from the IP address 192.0.2.44.
    To create and configure a Rule , perform the following steps:
    If you want to replace one ByteMatchSet or IPSet with another, you delete the existing one and add the new one.
    For more information about how to use the AWS WAF API to allow or block HTTP requests, see the AWS WAF Developer Guide .
    See also: AWS API Documentation
    
    Examples
    The following example deletes a Predicate object in a rule with the ID example1ds3t-46da-4fdb-b8d5-abc321j569j5.
    Expected Output:
    
    :example: response = client.update_rule(
        RuleId='string',
        ChangeToken='string',
        Updates=[
            {
                'Action': 'INSERT'|'DELETE',
                'Predicate': {
                    'Negated': True|False,
                    'Type': 'IPMatch'|'ByteMatch'|'SqlInjectionMatch'|'SizeConstraint'|'XssMatch',
                    'DataId': 'string'
                }
            },
        ]
    )
    
    
    :type RuleId: string
    :param RuleId: [REQUIRED]
            The RuleId of the Rule that you want to update. RuleId is returned by CreateRule and by ListRules .
            

    :type ChangeToken: string
    :param ChangeToken: [REQUIRED]
            The value returned by the most recent call to GetChangeToken .
            

    :type Updates: list
    :param Updates: [REQUIRED]
            An array of RuleUpdate objects that you want to insert into or delete from a Rule . For more information, see the applicable data types:
            RuleUpdate : Contains Action and Predicate
            Predicate : Contains DataId , Negated , and Type
            FieldToMatch : Contains Data and Type
            (dict) --Specifies a Predicate (such as an IPSet ) and indicates whether you want to add it to a Rule or delete it from a Rule .
            Action (string) -- [REQUIRED]Specify INSERT to add a Predicate to a Rule . Use DELETE to remove a Predicate from a Rule .
            Predicate (dict) -- [REQUIRED]The ID of the Predicate (such as an IPSet ) that you want to add to a Rule .
            Negated (boolean) -- [REQUIRED]Set Negated to False if you want AWS WAF to allow, block, or count requests based on the settings in the specified ByteMatchSet , IPSet , SqlInjectionMatchSet , XssMatchSet , or SizeConstraintSet . For example, if an IPSet includes the IP address 192.0.2.44 , AWS WAF will allow or block requests based on that IP address.
            Set Negated to True if you want AWS WAF to allow or block a request based on the negation of the settings in the ByteMatchSet , IPSet , SqlInjectionMatchSet , XssMatchSet , or SizeConstraintSet . For example, if an IPSet includes the IP address 192.0.2.44 , AWS WAF will allow, block, or count requests based on all IP addresses except 192.0.2.44 .
            Type (string) -- [REQUIRED]The type of predicate in a Rule , such as ByteMatchSet or IPSet .
            DataId (string) -- [REQUIRED]A unique identifier for a predicate in a Rule , such as ByteMatchSetId or IPSetId . The ID is returned by the corresponding Create or List command.
            
            

    :rtype: dict
    :return: {
        'ChangeToken': 'string'
    }
    
    
    :returns: 
    Create and update the predicates that you want to include in the Rule .
    Create the Rule . See  CreateRule .
    Use GetChangeToken to get the change token that you provide in the ChangeToken parameter of an  UpdateRule request.
    Submit an UpdateRule request to add predicates to the Rule .
    Create and update a WebACL that contains the Rule . See  CreateWebACL .
    
    """
    pass
