def create_blob_from_stream(<EOL>self, container_name, blob_name, stream, count, content_settings=None,<EOL>metadata=None, validate_content=False, progress_callback=None,<EOL>max_connections=<NUM_LIT:2>, lease_id=None, if_modified_since=None,<EOL>if_unmodified_since=None, if_match=None, if_none_match=None, timeout=None,<EOL>premium_page_blob_tier=None):
_validate_not_none('<STR_LIT>', container_name)<EOL>_validate_not_none('<STR_LIT>', blob_name)<EOL>_validate_not_none('<STR_LIT>', stream)<EOL>_validate_not_none('<STR_LIT:count>', count)<EOL>_validate_encryption_required(self.require_encryption, self.key_encryption_key)<EOL>if count < <NUM_LIT:0>:<EOL><INDENT>raise ValueError(_ERROR_VALUE_NEGATIVE.format('<STR_LIT:count>'))<EOL><DEDENT>if count % _PAGE_ALIGNMENT != <NUM_LIT:0>:<EOL><INDENT>raise ValueError(_ERROR_PAGE_BLOB_SIZE_ALIGNMENT.format(count))<EOL><DEDENT>cek, iv, encryption_data = None, None, None<EOL>if self.key_encryption_key is not None:<EOL><INDENT>cek, iv, encryption_data = _generate_blob_encryption_data(self.key_encryption_key)<EOL><DEDENT>response = self._create_blob(<EOL>container_name=container_name,<EOL>blob_name=blob_name,<EOL>content_length=count,<EOL>content_settings=content_settings,<EOL>metadata=metadata,<EOL>lease_id=lease_id,<EOL>premium_page_blob_tier=premium_page_blob_tier,<EOL>if_modified_since=if_modified_since,<EOL>if_unmodified_since=if_unmodified_since,<EOL>if_match=if_match,<EOL>if_none_match=if_none_match,<EOL>timeout=timeout,<EOL>encryption_data=encryption_data<EOL>)<EOL>if count == <NUM_LIT:0>:<EOL><INDENT>return response<EOL><DEDENT>resource_properties = ResourceProperties()<EOL>_upload_blob_chunks(<EOL>blob_service=self,<EOL>container_name=container_name,<EOL>blob_name=blob_name,<EOL>blob_size=count,<EOL>block_size=self.MAX_PAGE_SIZE,<EOL>stream=stream,<EOL>max_connections=max_connections,<EOL>progress_callback=progress_callback,<EOL>validate_content=validate_content,<EOL>lease_id=lease_id,<EOL>uploader_class=_PageBlobChunkUploader,<EOL>if_match=response.etag,<EOL>timeout=timeout,<EOL>content_encryption_key=cek,<EOL>initialization_vector=iv,<EOL>resource_properties=resource_properties<EOL>)<EOL>return resource_properties<EOL>
Creates a new blob from a file/stream, or updates the content of an
existing blob, with automatic chunking and progress notifications.

:param str container_name:
    Name of existing container.
:param str blob_name:
    Name of blob to create or update.
:param io.IOBase stream:
    Opened file/stream to upload as the blob content.
:param int count:
    Number of bytes to read from the stream. This is required, a page
    blob cannot be created if the count is unknown.
:param ~azure.storage.blob.models.ContentSettings content_settings:
    ContentSettings object used to set the blob properties.
:param metadata:
    Name-value pairs associated with the blob as metadata.
:type metadata: dict(str, str)
:param bool validate_content:
    If true, calculates an MD5 hash for each page of the blob. The storage 
    service checks the hash of the content that has arrived with the hash 
    that was sent. This is primarily valuable for detecting bitflips on 
    the wire if using http instead of https as https (the default) will 
    already validate. Note that this MD5 hash is not stored with the 
    blob.
:param progress_callback:
    Callback for progress with signature function(current, total) where
    current is the number of bytes transfered so far, and total is the
    size of the blob, or None if the total size is unknown.
:type progress_callback: func(current, total)
:param int max_connections:
    Maximum number of parallel connections to use. Note that parallel upload 
    requires the stream to be seekable.
:param str lease_id:
    Required if the blob has an 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. This method may make 
    multiple calls to the Azure service and the timeout will apply to 
    each call individually.
:param premium_page_blob_tier:
    A page blob tier value to set the blob to. The tier correlates to the size of the
    blob and number of allowed IOPS. This is only applicable to page blobs on
    premium storage accounts.
:return: ETag and last modified properties for the Page Blob
:rtype: :class:`~azure.storage.blob.models.ResourceProperties`