def release_blob_lease(self, container_name, blob_name,<EOL>lease_id, if_modified_since=None,<EOL>if_unmodified_since=None, if_match=None,<EOL>if_none_match=None, timeout=None):
_validate_not_none('<STR_LIT>', lease_id)<EOL>self._lease_blob_impl(container_name,<EOL>blob_name,<EOL>_LeaseActions.Release,<EOL>lease_id,<EOL>None, <EOL>None, <EOL>None, <EOL>if_modified_since,<EOL>if_unmodified_since,<EOL>if_match,<EOL>if_none_match,<EOL>timeout)<EOL>
Releases a lock on a blob for write and delete operations.
The lock duration can be 15 to 60 seconds, or can be infinite.

:param str container_name:
    Name of existing container.
:param str blob_name:
    Name of existing blob.
:param str lease_id:
    Lease ID for active lease.
:param datetime if_modified_since:
    A DateTime value. Azure expects the date value passed in to be UTC.
    If timezone is included, any non-UTC datetimes will be converted to UTC.
    If a date is passed in without timezone info, it is assumed to be UTC. 
    Specify this header to perform the operation only
    if the resource has been modified since the specified time.
:param datetime if_unmodified_since:
    A DateTime value. Azure expects the date value passed in to be UTC.
    If timezone is included, any non-UTC datetimes will be converted to UTC.
    If a date is passed in without timezone info, it is assumed to be UTC.
    Specify this header to perform the operation only if
    the resource has not been modified since the specified date/time.
:param str if_match:
    An ETag value, or the wildcard character (*). Specify this header to perform
    the operation only if the resource's ETag matches the value specified.
:param str if_none_match:
    An ETag value, or the wildcard character (*). Specify this header
    to perform the operation only if the resource's ETag does not match
    the value specified. Specify the wildcard character (*) to perform
    the operation only if the resource does not exist, and fail the
    operation if it does exist.
:param int timeout:
    The timeout parameter is expressed in seconds.