```ruby
# Copyright (C) 2013 Dmitry Yakimenko (detunized@gmail.com).
# Licensed under the terms of the MIT license. See LICENCE for details.

module LastPass
    class Vault
        attr_reader :accounts

        # Fetches a blob from the server and creates a vault
        def self.open_remote username, password, multifactor_password = nil
            open Vault.fetch_blob(username, password, multifactor_password), username, password
        end

        # Creates a vault from a locally stored blob
        def self.open_local blob_filename, username, password
            # TODO: read the blob here
        end

        # Creates a vault from a blob object
        def self.open blob, username, password
            new blob, blob.encryption_key(username, password)
        end

        # Just fetches the blob, could be used to store it locally
        def self.fetch_blob username, password, multifactor_password = nil
            Fetcher.fetch Fetcher.login username, password, multifactor_password
        end

        # This more of an internal method, use one of the static constructors instead
        def initialize blob, encryption_key
            chunks = Parser.extract_chunks blob
            @accounts = chunks
                .select { |i| i.id == "ACCT" }
                .map { |i| Parser.parse_account i, encryption_key }
        end
    end
end
```

Stop at the first SHAR chunk
user
```ruby
# Copyright (C) 2013 Dmitry Yakimenko (detunized@gmail.com).
# Licensed under the terms of the MIT license. See LICENCE for details.

module LastPass
    class Vault
        attr_reader :accounts

        # Fetches a blob from the server and creates a vault
        def self.open_remote username, password, multifactor_password = nil
            open Vault.fetch_blob(username, password, multifactor_password), username, password
        end

        # Creates a vault from a locally stored blob
        def self.open_local blob_filename, username, password
            # TODO: read the blob here
        end

        # Creates a vault from a blob object
        def self.open blob, username, password
            new blob, blob.encryption_key(username, password)
        end

        # Just fetches the blob, could be used to store it locally
        def self.fetch_blob username, password, multifactor_password = nil
            Fetcher.fetch Fetcher.login username, password, multifactor_password
        end

        # This more of an internal method, use one of the static constructors instead
        def initialize blob, encryption_key
            @accounts = []

            Parser.extract_chunks(blob).each do |i|
                case i.id
                when "ACCT"
                    @accounts.push Parser.parse_account i, encryption_key
                when "SHAR"
                    # We need to stop at the first shared folder chunk
                    # All account below are encrypted with different keys
                    # Not supported at the moment
                    break
                end
            end
        end
    end
end
```
assistant