def delete_organizational_unit(OrganizationalUnitId=None):
    """
    Deletes an organizational unit from a root or another OU. You must first remove all accounts and child OUs from the OU that you want to delete.
    This operation can be called only from the organization's master account.
    See also: AWS API Documentation
    
    
    :example: response = client.delete_organizational_unit(
        OrganizationalUnitId='string'
    )
    
    
    :type OrganizationalUnitId: string
    :param OrganizationalUnitId: [REQUIRED]
            The unique identifier (ID) of the organizational unit that you want to delete. You can get the ID from the ListOrganizationalUnitsForParent operation.
            The regex pattern for an organizational unit ID string requires 'ou-' followed by from 4 to 32 lower-case letters or digits (the ID of the root that contains the OU) followed by a second '-' dash and from 8 to 32 additional lower-case letters or digits.
            

    """
    pass
