--[gRPC documentation]: https:--github.com/grpc/grpc/blob/master/doc/statuscodes.md
local M = {
	-- OK is returned on success.
	OK = 0,

	-- Canceled indicates the operation was canceled (typically by the caller).
	--
	-- The gRPC framework will generate this error code when cancellation
	-- is requested.
	Canceled = 1,

	-- Unknown error. An example of where this error may be returned is
	-- if a Status value received from another address space belongs to
	-- an error-space that is not known in this address space. Also
	-- errors raised by APIs that do not return enough error information
	-- may be converted to this error.
	--
	-- The gRPC framework will generate this error code in the above two
	-- mentioned cases.
	Unknown = 2,

	-- InvalidArgument indicates client specified an invalid argument.
	-- Note that this differs from FailedPrecondition. It indicates arguments
	-- that are problematic regardless of the state of the system
	-- (e.g., a malformed file name).
	--
	-- This error code will not be generated by the gRPC framework.
	InvalidArgument = 3,

	-- DeadlineExceeded means operation expired before completion.
	-- For operations that change the state of the system, this error may be
	-- returned even if the operation has completed successfully. For
	-- example, a successful response from a server could have been delayed
	-- long enough for the deadline to expire.
	--
	-- The gRPC framework will generate this error code when the deadline is
	-- exceeded.
	DeadlineExceeded = 4,

	-- NotFound means some requested entity (e.g., file or directory) was
	-- not found.
	--
	-- This error code will not be generated by the gRPC framework.
	NotFound = 5,

	-- AlreadyExists means an attempt to create an entity failed because one
	-- already exists.
	--
	-- This error code will not be generated by the gRPC framework.
	AlreadyExists = 6,

	-- PermissionDenied indicates the caller does not have permission to
	-- execute the specified operation. It must not be used for rejections
	-- caused by exhausting some resource (use ResourceExhausted
	-- instead for those errors). It must not be
	-- used if the caller cannot be identified (use Unauthenticated
	-- instead for those errors).
	--
	-- This error code will not be generated by the gRPC core framework,
	-- but expect authentication middleware to use it.
	PermissionDenied = 7,

	-- ResourceExhausted indicates some resource has been exhausted, perhaps
	-- a per-user quota, or perhaps the entire file system is out of space.
	--
	-- This error code will be generated by the gRPC framework in
	-- out-of-memory and server overload situations, or when a message is
	-- larger than the configured maximum size.
	ResourceExhausted = 8,

	-- FailedPrecondition indicates operation was rejected because the
	-- system is not in a state required for the operation's execution.
	-- For example, directory to be deleted may be non-empty, an rmdir
	-- operation is applied to a non-directory, etc.
	--
	-- A litmus test that may help a service implementor in deciding
	-- between FailedPrecondition, Aborted, and Unavailable:
	--  (a) Use Unavailable if the client can retry just the failing call.
	--  (b) Use Aborted if the client should retry at a higher-level
	--      (e.g., restarting a read-modify-write sequence).
	--  (c) Use FailedPrecondition if the client should not retry until
	--      the system state has been explicitly fixed. E.g., if an "rmdir"
	--      fails because the directory is non-empty, FailedPrecondition
	--      should be returned since the client should not retry unless
	--      they have first fixed up the directory by deleting files from it.
	--  (d) Use FailedPrecondition if the client performs conditional
	--      REST Get/Update/Delete on a resource and the resource on the
	--      server does not match the condition. E.g., conflicting
	--      read-modify-write on the same resource.
	--
	-- This error code will not be generated by the gRPC framework.
	FailedPrecondition = 9,

	-- Aborted indicates the operation was aborted, typically due to a
	-- concurrency issue like sequencer check failures, transaction aborts,
	-- etc.
	--
	-- See litmus test above for deciding between FailedPrecondition,
	-- Aborted, and Unavailable.
	--
	-- This error code will not be generated by the gRPC framework.
	Aborted = 10,

	-- OutOfRange means operation was attempted past the valid range.
	-- E.g., seeking or reading past end of file.
	--
	-- Unlike InvalidArgument, this error indicates a problem that may
	-- be fixed if the system state changes. For example, a 32-bit file
	-- system will generate InvalidArgument if asked to read at an
	-- offset that is not in the range [0,2^32-1], but it will generate
	-- OutOfRange if asked to read from an offset past the current
	-- file size.
	--
	-- There is a fair bit of overlap between FailedPrecondition and
	-- OutOfRange. We recommend using OutOfRange (the more specific
	-- error) when it applies so that callers who are iterating through
	-- a space can easily look for an OutOfRange error to detect when
	-- they are done.
	--
	-- This error code will not be generated by the gRPC framework.
	OutOfRange = 11,

	-- Unimplemented indicates operation is not implemented or not
	-- supported/enabled in this service.
	--
	-- This error code will be generated by the gRPC framework. Most
	-- commonly, you will see this error code when a method implementation
	-- is missing on the server. It can also be generated for unknown
	-- compression algorithms or a disagreement as to whether an RPC should
	-- be streaming.
	Unimplemented = 12,

	-- Internal errors. Means some invariants expected by underlying
	-- system has been broken. If you see one of these errors,
	-- something is very broken.
	--
	-- This error code will be generated by the gRPC framework in several
	-- internal error conditions.
	Internal = 13,

	-- Unavailable indicates the service is currently unavailable.
	-- This is a most likely a transient condition and may be corrected
	-- by retrying with a backoff. Note that it is not always safe to retry
	-- non-idempotent operations.
	--
	-- See litmus test above for deciding between FailedPrecondition,
	-- Aborted, and Unavailable.
	--
	-- This error code will be generated by the gRPC framework during
	-- abrupt shutdown of a server process or network connection.
	Unavailable = 14,

	-- DataLoss indicates unrecoverable data loss or corruption.
	--
	-- This error code will not be generated by the gRPC framework.
	DataLoss = 15,

	-- Unauthenticated indicates the request does not have valid
	-- authentication credentials for the operation.
	--
	-- The gRPC framework will generate this error code when the
	-- authentication metadata is invalid or a Credentials callback fails,
	-- but also expect authentication middleware to generate it.
	Unauthenticated = 16,
}

return M