def create_document(Content=None, Name=None, DocumentType=None):
    """
    Creates a Systems Manager document.
    After you create a document, you can use CreateAssociation to associate it with one or more running instances.
    See also: AWS API Documentation
    
    
    :example: response = client.create_document(
        Content='string',
        Name='string',
        DocumentType='Command'|'Policy'|'Automation'
    )
    
    
    :type Content: string
    :param Content: [REQUIRED]
            A valid JSON string.
            

    :type Name: string
    :param Name: [REQUIRED]
            A name for the Systems Manager document.
            

    :type DocumentType: string
    :param DocumentType: The type of document to create. Valid document types include: Policy, Automation, and Command.

    :rtype: dict
    :return: {
        'DocumentDescription': {
            'Sha1': 'string',
            'Hash': 'string',
            'HashType': 'Sha256'|'Sha1',
            'Name': 'string',
            'Owner': 'string',
            'CreatedDate': datetime(2015, 1, 1),
            'Status': 'Creating'|'Active'|'Updating'|'Deleting',
            'DocumentVersion': 'string',
            'Description': 'string',
            'Parameters': [
                {
                    'Name': 'string',
                    'Type': 'String'|'StringList',
                    'Description': 'string',
                    'DefaultValue': 'string'
                },
            ],
            'PlatformTypes': [
                'Windows'|'Linux',
            ],
            'DocumentType': 'Command'|'Policy'|'Automation',
            'SchemaVersion': 'string',
            'LatestVersion': 'string',
            'DefaultVersion': 'string'
        }
    }
    
    
    :returns: 
    (string) --
    
    """
    pass
