How to use the azure-storage-blob.azure.storage.blob.models.ContainerPermissions function in azure-storage-blob

def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('c' if self.create else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)
ContainerPermissions.ADD = ContainerPermissions(add=True)
ContainerPermissions.CREATE = ContainerPermissions(create=True)


class PremiumPageBlobTier(object):
    '''
    Specifies the page blob tier to set the blob to. This is only applicable to page
    blobs on premium storage accounts.
    Please take a look at https://docs.microsoft.com/en-us/azure/storage/storage-premium-storage#scalability-and-performance-targets
    for detailed information on the corresponding IOPS and throughtput per PageBlobTier.
    '''

    P4 = 'P4'
    ''' P4 Tier '''

    P6 = 'P6'
    ''' P6 Tier '''

self.list = list or ('l' in _str)

    def __or__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)


class BlobPermissions(object):
    """
    BlobPermissions class to be used with
    :func:`~azure.storage.blob.blob_client.BlobClient.generate_shared_access_signature` API.

    :ivar BlobPermissions BlobPermissions.ADD:
        Add a block to an append blob.
    :ivar BlobPermissions BlobPermissions.CREATE:
        Write a new blob, snapshot a blob, or copy a blob to a new blob.
    :ivar BlobPermissions BlobPermissions.DELETE:
        Delete the blob.

def __or__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('c' if self.create else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)
ContainerPermissions.ADD = ContainerPermissions(add=True)
ContainerPermissions.CREATE = ContainerPermissions(create=True)


class PremiumPageBlobTier(object):
    '''
    Specifies the page blob tier to set the blob to. This is only applicable to page
    blobs on premium storage accounts.
    Please take a look at https://docs.microsoft.com/en-us/azure/storage/storage-premium-storage#scalability-and-performance-targets
    for detailed information on the corresponding IOPS and throughtput per PageBlobTier.
    '''

    P4 = 'P4'

def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('c' if self.create else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)
ContainerPermissions.ADD = ContainerPermissions(add=True)
ContainerPermissions.CREATE = ContainerPermissions(create=True)


class PremiumPageBlobTier(object):
    '''
    Specifies the page blob tier to set the blob to. This is only applicable to page
    blobs on premium storage accounts.
    Please take a look at https://docs.microsoft.com/en-us/azure/storage/storage-premium-storage#scalability-and-performance-targets
    for detailed information on the corresponding IOPS and throughtput per PageBlobTier.
    '''

    P4 = 'P4'
    ''' P4 Tier '''

def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('a' if self.add else '') +
                ('c' if self.create else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)
ContainerPermissions.ADD = ContainerPermissions(add=True)
ContainerPermissions.CREATE = ContainerPermissions(create=True)


class PremiumPageBlobTier(object):
    '''
    Specifies the page blob tier to set the blob to. This is only applicable to page
    blobs on premium storage accounts.
    Please take a look at https://docs.microsoft.com/en-us/azure/storage/storage-premium-storage#scalability-and-performance-targets
    for detailed information on the corresponding IOPS and throughtput per PageBlobTier.
    '''

    P4 = 'P4'
    ''' P4 Tier '''

    P6 = 'P6'

def __or__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

def __or__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)


class BlobPermissions(object):
    """
    BlobPermissions class to be used with
    :func:`~azure.storage.blob.blob_client.BlobClient.generate_shared_access_signature` API.

    :ivar BlobPermissions BlobPermissions.ADD:
        Add a block to an append blob.
    :ivar BlobPermissions BlobPermissions.CREATE:
        Write a new blob, snapshot a blob, or copy a blob to a new blob.
    :ivar BlobPermissions BlobPermissions.DELETE:
        Delete the blob.
    :ivar BlobPermissions BlobPermissions.READ:
        Read the content, properties, metadata and block list. Use the blob as the source of a copy operation.

def __or__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))

    def __str__(self):
        return (('r' if self.read else '') +
                ('w' if self.write else '') +
                ('d' if self.delete else '') +
                ('l' if self.list else ''))


ContainerPermissions.DELETE = ContainerPermissions(delete=True)
ContainerPermissions.LIST = ContainerPermissions(list=True)
ContainerPermissions.READ = ContainerPermissions(read=True)
ContainerPermissions.WRITE = ContainerPermissions(write=True)


class BlobPermissions(object):
    """
    BlobPermissions class to be used with
    :func:`~azure.storage.blob.blob_client.BlobClient.generate_shared_access_signature` API.

    :ivar BlobPermissions BlobPermissions.ADD:
        Add a block to an append blob.
    :ivar BlobPermissions BlobPermissions.CREATE:
        Write a new blob, snapshot a blob, or copy a blob to a new blob.
    :ivar BlobPermissions BlobPermissions.DELETE:
        Delete the blob.
    :ivar BlobPermissions BlobPermissions.READ:

def __add__(self, other):
        return ContainerPermissions(_str=str(self) + str(other))