def describe_regions(DryRun=None, RegionNames=None, Filters=None):
    """
    Describes one or more regions that are currently available to you.
    For a list of the regions supported by Amazon EC2, see Regions and Endpoints .
    See also: AWS API Documentation
    
    Examples
    This example describes all the regions that are available to you.
    Expected Output:
    
    :example: response = client.describe_regions(
        DryRun=True|False,
        RegionNames=[
            'string',
        ],
        Filters=[
            {
                'Name': 'string',
                'Values': [
                    'string',
                ]
            },
        ]
    )
    
    
    :type DryRun: boolean
    :param DryRun: Checks whether you have the required permissions for the action, without actually making the request, and provides an error response. If you have the required permissions, the error response is DryRunOperation . Otherwise, it is UnauthorizedOperation .

    :type RegionNames: list
    :param RegionNames: The names of one or more regions.
            (string) --
            

    :type Filters: list
    :param Filters: One or more filters.
            endpoint - The endpoint of the region (for example, ec2.us-east-1.amazonaws.com ).
            region-name - The name of the region (for example, us-east-1 ).
            (dict) --A filter name and value pair that is used to return a more specific list of results. Filters can be used to match a set of resources by various criteria, such as tags, attributes, or IDs.
            Name (string) --The name of the filter. Filter names are case-sensitive.
            Values (list) --One or more filter values. Filter values are case-sensitive.
            (string) --
            
            

    :rtype: dict
    :return: {
        'Regions': [
            {
                'RegionName': 'string',
                'Endpoint': 'string'
            },
        ]
    }
    
    
    """
    pass
