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731697d671
This is a bit of a cheat, since the format does not actually change. On the other hand it is fairly common to do something like this to shared libary SONAMEs when the ABI changes in some subtle way. It does rely on the format-version argument being early enough on the command line to generate a sensible error message.
242 lines
7.2 KiB
Text
242 lines
7.2 KiB
Text
This file describes the schemata used for notmuch's structured output
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format (currently JSON and S-Expressions).
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[]'s indicate lists. List items can be marked with a '?', meaning
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they are optional; or a '*', meaning there can be zero or more of that
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item. {}'s indicate an object that maps from field identifiers to
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values. An object field marked '?' is optional; one marked with '*'
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can repeat (with a different name). |'s indicate alternates (e.g.,
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int|string means something can be an int or a string).
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For S-Expression output, lists are printed delimited by () instead of
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[]. Objects are printed as p-lists, i.e. lists where the keys and values
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are interleaved. Keys are printed as keywords (symbols preceded by a
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colon), e.g. (:id "123" :time 54321 :from "foobar"). Null is printed as
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nil, true as t and false as nil.
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This is version 5 of the structured output format.
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Version history
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---------------
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v1
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- First versioned schema release.
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- Added part.content-length and part.content-transfer-encoding fields.
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v2
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- Added the thread_summary.query field.
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v3
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- Replaced message.filename string with a list of filenames.
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- Added part.content-disposition field.
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v4
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- replace signature error integer bitmask with a set of flags for
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individual errors.
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- (notmuch 0.29) added message.crypto to identify overall message
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cryptographic state
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v5
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- sorting support for notmuch show (no change to actual schema,
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just new command line argument)
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Common non-terminals
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--------------------
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# Number of seconds since the Epoch
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unix_time = int
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# Thread ID, sans "thread:"
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threadid = string
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# Message ID, sans "id:"
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messageid = string
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# E-mail header name, sans trailing colon, like "Subject" or "In-Reply-To"
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header_name = string
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notmuch show schema
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-------------------
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# A top-level set of threads (do_show)
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# Returned by notmuch show without a --part argument
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thread_set = [thread*]
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# Top-level messages in a thread (show_messages)
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thread = [thread_node*]
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# A message and its replies (show_messages)
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thread_node = [
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message|null, # null if not matched and not --entire-thread
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[thread_node*] # children of message
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]
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# A message (format_part_sprinter)
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message = {
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# (format_message_sprinter)
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id: messageid,
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match: bool,
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filename: [string*],
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timestamp: unix_time, # date header as unix time
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date_relative: string, # user-friendly timestamp
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tags: [string*],
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headers: headers,
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crypto: crypto,
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body?: [part] # omitted if --body=false
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}
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# when showing the message, was any or all of it decrypted?
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msgdecstatus: "full"|"partial"
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# The overall cryptographic state of the message as a whole:
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crypto = {
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signed?: {
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status: sigstatus,
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# was the set of signatures described under encrypted cover?
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encrypted: bool,
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# which of the headers is covered by sigstatus?
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headers: [header_name*]
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},
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decrypted?: {
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status: msgdecstatus,
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# map encrypted headers that differed from the outside headers.
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# the value of each item in the map is what that field showed externally
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# (maybe null if it was not present in the external headers).
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header-mask: { header_name*: string|null }
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}
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}
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# A MIME part (format_part_sprinter)
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part = {
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id: int|string, # part id (currently DFS part number)
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encstatus?: encstatus,
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sigstatus?: sigstatus,
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content-type: string,
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content-disposition?: string,
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content-id?: string,
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# if content-type starts with "multipart/":
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content: [part*],
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# if content-type is "message/rfc822":
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content: [{headers: headers, body: [part]}],
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# otherwise (leaf parts):
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filename?: string,
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content-charset?: string,
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# A leaf part's body content is optional, but may be included if
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# it can be correctly encoded as a string. Consumers should use
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# this in preference to fetching the part content separately.
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content?: string,
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# If a leaf part's body content is not included, the length of
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# the encoded content (in bytes) may be given instead.
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content-length?: int,
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# If a leaf part's body content is not included, its transfer encoding
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# may be given. Using this and the encoded content length, it is
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# possible for the consumer to estimate the decoded content length.
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content-transfer-encoding?: string
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}
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# The headers of a message or part (format_headers_sprinter with reply = FALSE)
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headers = {
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Subject: string,
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From: string,
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To?: string,
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Cc?: string,
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Bcc?: string,
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Reply-To?: string,
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Date: string
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}
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# Encryption status (format_part_sprinter)
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encstatus = [{status: "good"|"bad"}]
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# Signature status (format_part_sigstatus_sprinter)
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sigstatus = [signature*]
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signature = {
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# (signature_status_to_string)
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status: "good"|"bad"|"error"|"unknown",
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# if status is "good":
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fingerprint?: string,
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created?: unix_time,
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expires?: unix_time,
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userid?: string
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email?: string
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# if status is not "good":
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keyid?: string
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errors?: sig_errors
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}
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sig_errors = {
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key-revoked?: bool,
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key-expired?: bool,
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sig-expired?: bool,
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key-missing?: bool,
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alg-unsupported?: bool,
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crl-missing?: bool,
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crl-too-old?: bool,
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bad-policy?: bool,
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sys-error?: bool,
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tofu-conflict?: bool
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}
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notmuch search schema
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---------------------
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# --output=summary
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search_summary = [thread_summary*]
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# --output=threads
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search_threads = [threadid*]
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# --output=messages
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search_messages = [messageid*]
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# --output=files
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search_files = [string*]
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# --output=tags
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search_tags = [string*]
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thread_summary = {
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thread: threadid,
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timestamp: unix_time,
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date_relative: string, # user-friendly timestamp
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matched: int, # number of matched messages
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total: int, # total messages in thread
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authors: string, # comma-separated names with | between
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# matched and unmatched
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subject: string,
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tags: [string*],
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# Two stable query strings identifying exactly the matched and
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# unmatched messages currently in this thread. The messages
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# matched by these queries will not change even if more messages
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# arrive in the thread. If there are no matched or unmatched
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# messages, the corresponding query will be null (there is no
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# query that matches nothing). (Added in schema version 2.)
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query: [string|null, string|null],
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}
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notmuch reply schema
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--------------------
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reply = {
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# The headers of the constructed reply
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reply-headers: reply_headers,
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# As in the show format (format_part_sprinter)
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original: message
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}
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# Reply headers (format_headers_sprinter with reply = TRUE)
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reply_headers = {
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Subject: string,
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From: string,
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To?: string,
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Cc?: string,
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Bcc?: string,
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In-reply-to: string,
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References: string
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}
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