extend type Mutation {
    """Create a new bug"""
    bugCreate(input: BugCreateInput!): BugCreatePayload!
    """Add a new comment to a bug"""
    bugAddComment(input: BugAddCommentInput!): BugAddCommentPayload!
    """Add a new comment to a bug and close it"""
    bugAddCommentAndClose(input: BugAddCommentAndCloseInput!): BugAddCommentAndClosePayload!
    """Add a new comment to a bug and reopen it"""
    bugAddCommentAndReopen(input: BugAddCommentAndReopenInput!): BugAddCommentAndReopenPayload!
    """Change a comment of a bug"""
    bugEditComment(input: BugEditCommentInput!): BugEditCommentPayload!
    """Add or remove a set of label on a bug"""
    bugChangeLabels(input: BugChangeLabelInput): BugChangeLabelPayload!
    """Change a bug's status to open"""
    bugStatusOpen(input: BugStatusOpenInput!): BugStatusOpenPayload!
    """Change a bug's status to closed"""
    bugStatusClose(input: BugStatusCloseInput!): BugStatusClosePayload!
    """Change a bug's title"""
    bugSetTitle(input: BugSetTitleInput!): BugSetTitlePayload!
}

input BugCreateInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The title of the new bug."""
    title: String!
    """The first message of the new bug."""
    message: String!
    """The collection of file's hash required for the first message."""
    files: [Hash!]
}

type BugCreatePayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The created bug."""
    bug: Bug!
    """The resulting operation."""
    operation: BugCreateOperation!
}

input BugAddCommentInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
    """The message to be added to the bug."""
    message: String!
    """The collection of file's hash required for the first message."""
    files: [Hash!]
}

type BugAddCommentPayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting operation."""
    operation: BugAddCommentOperation!
}

input BugAddCommentAndCloseInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
    """The message to be added to the bug."""
    message: String!
    """The collection of file's hash required for the first message."""
    files: [Hash!]
}

type BugAddCommentAndClosePayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting AddComment operation."""
    commentOperation: BugAddCommentOperation!
    """The resulting SetStatusOperation."""
    statusOperation: BugSetStatusOperation!
}

input BugAddCommentAndReopenInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
    """The message to be added to the bug."""
    message: String!
    """The collection of file's hash required for the first message."""
    files: [Hash!]
}

type BugAddCommentAndReopenPayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting AddComment operation."""
    commentOperation: BugAddCommentOperation!
    """The resulting SetStatusOperation."""
    statusOperation: BugSetStatusOperation!
}

input BugEditCommentInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """A prefix of the CombinedId of the comment to be changed."""
    targetPrefix: String!
    """The new message to be set."""
    message: String!
    """The collection of file's hash required for the first message."""
    files: [Hash!]
}

type BugEditCommentPayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting operation."""
    operation: BugEditCommentOperation!
}

input BugChangeLabelInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
    """The list of label to add."""
    added: [String!]
    """The list of label to remove."""
    Removed: [String!]
}

type BugChangeLabelPayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting operation."""
    operation: BugLabelChangeOperation!
    """The effect each source label had."""
    results: [LabelChangeResult]!
}

input BugStatusOpenInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
}

type BugStatusOpenPayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting operation."""
    operation: BugSetStatusOperation!
}

input BugStatusCloseInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
}

type BugStatusClosePayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting operation."""
    operation: BugSetStatusOperation!
}

input BugSetTitleInput {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The name of the repository. If not set, the default repository is used."""
    repoRef: String
    """The bug ID's prefix."""
    prefix: String!
    """The new title."""
    title: String!
}

type BugSetTitlePayload {
    """A unique identifier for the client performing the mutation."""
    clientMutationId: String
    """The affected bug."""
    bug: Bug!
    """The resulting operation"""
    operation: BugSetTitleOperation!
}