How to use the sourcegraph.WorkspaceEdit function in sourcegraph

function createWorkspaceEditForIgnore(
    doc: sourcegraph.TextDocument,
    diagnostic: sourcegraph.Diagnostic,
    edit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit {
    // TODO!(sqs): get indent of previous line - in vscode this is inserted on the client
    // automatically, check out how they do it because that seems neat
    // (https://sourcegraph.com/github.com/microsoft/vscode-tslint@30d1a7ae25b0331466f1a54b4f7d23d60fa2da30/-/blob/tslint-server/src/tslintServer.ts#L618)

    const range = diagnostic.range // TODO!(sqs): get other duplication instance too

    const startIndent = doc.text.slice(doc.offsetAt(range.start.with(undefined, 0))).match(/[ \t]*/)
    edit.insert(
        new URL(doc.uri),
        range.start.with(undefined, 0),
        `${startIndent ? startIndent[0] : ''}// jscpd:ignore-start\n`
    )

    const endIndent = doc.text.slice(doc.offsetAt(range.end.with(undefined, 0))).match(/[ \t]*/)
    edit.insert(

function computeIgnoreEdit(
    diag: sourcegraph.Diagnostic,
    doc: sourcegraph.TextDocument,
    edit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit {
    const { binding, module } = getDiagnosticData(diag)
    for (const range of findMatchRanges(doc.text, binding, module)) {
        edit.insert(
            new URL(doc.uri),
            range.end,
            ' // sourcegraph:ignore-line React lint https://sourcegraph.example.com/ofYRz6NFzj'
        )
    }
    return edit
}

vars: {
            repositoryNames: context.repositoryNames || ['github.com/sd9/guava19to21-sample'],
            matchTemplate: context.matchTemplate,
            rule: context.rule,
            rewriteTemplate: context.rewriteTemplate,
        },
    })
    if (errors && errors.length > 0) {
        throw new Error(`GraphQL response error: ${errors[0].message}`)
    }
    const canonicalURLs: string[] = data.comby.results.map(
        (r: any) => `git://${r.file.commit.repository.name}?${r.file.commit.oid}#${r.file.path}`
    )
    const docs = await Promise.all(canonicalURLs.map(url => sourcegraph.workspace.openTextDocument(new URL(url))))

    const edit = new sourcegraph.WorkspaceEdit()
    for (const [i, doc] of docs.entries()) {
        if (doc.text!.length > 15000) {
            continue // TODO!(sqs): skip too large
        }
        edit.set(new URL(doc.uri), [sourcegraph.TextEdit.patch(data.comby.results[i].rawDiff)])
    }

    return (edit as any).toJSON()
}

function computeRemoveDependencyEdit(
    diag: sourcegraph.Diagnostic,
    doc: sourcegraph.TextDocument,
    edit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit {
    const dep = getDiagnosticData(diag)
    const range = findDependencyMatchRange(doc.text, dep.name)
    // TODO!(sqs): assumes dependency key-value is all on one line and only appears once
    edit.delete(
        new URL(doc.uri),
        new sourcegraph.Range(
            range.start.with({ character: 0 }),
            range.end.with({ line: range.end.line + 1, character: 0 })
        )
    )
    return edit
}

function computeRemoveDependencyEdit(
    diag: sourcegraph.Diagnostic,
    doc: sourcegraph.TextDocument,
    edit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit {
    const dep = getDiagnosticData(diag)
    const range = findDependencyMatchRange(doc.text, dep.name)
    // TODO!(sqs): assumes dependency key-value is all on one line and only appears once
    edit.delete(
        new URL(doc.uri),
        new sourcegraph.Range(
            range.start.with({ character: 0 }),
            range.end.with({ line: range.end.line + 1, character: 0 })
        )
    )
    return edit
}

export const editPackageJson = (
    doc: sourcegraph.TextDocument,
    operations: { path: Segment[]; value: any }[],
    workspaceEdit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit => {
    for (const op of operations) {
        const edits = setProperty(doc.text!, op.path, op.value, PACKAGE_JSON_FORMATTING_OPTIONS)
        for (const edit of edits) {
            workspaceEdit.replace(
                new URL(doc.uri),
                new sourcegraph.Range(doc.positionAt(edit.offset), doc.positionAt(edit.offset + edit.length)),
                edit.content
            )
        }
    }
    return workspaceEdit
}

function computeFixEdit(
    diag: sourcegraph.Diagnostic,
    doc: sourcegraph.TextDocument,
    edit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit {
    if (!doc.text.includes('1.13.x')) {
        const ranges = findMatchRanges(doc.text, /^go:/g)
        if (ranges.length > 0) {
            for (const range of ranges) {
                edit.insert(new URL(doc.uri), range.end, `\n  - "1.13.x"`)
            }
        } else {
            edit.insert(new URL(doc.uri), doc.positionAt(doc.text.length), `\n\ngo:\n  - "1.13.x"\n`)
        }
    }
    return edit
}

function computeFixEdit(
    diag: sourcegraph.Diagnostic,
    doc: sourcegraph.TextDocument,
    edit = new sourcegraph.WorkspaceEdit()
): sourcegraph.WorkspaceEdit {
    const { binding, module } = getDiagnosticData(diag)
    for (const range of findMatchRanges(doc.text, binding, module)) {
        edit.replace(new URL(doc.uri), range, `import ${binding} from '${module}'`)
    }
    return edit
}

async function computeFixAllActionsFromDiagnostics(
    diagnostics: sourcegraph.Diagnostic[]
): Promise> {
    const edit = new sourcegraph.WorkspaceEdit()
    for (const diag of diagnostics) {
        const doc = await sourcegraph.workspace.openTextDocument(diag.resource)
        computeFixEdit(diag, doc, edit)
    }
    return { edit, diagnostics: diagnostics }
}

catchError(err => {
                                  const edit = new WorkspaceEdit()
                                  edit.addDiagnostic({
                                      resource: decl.location.uri,
                                      range: new Range(0, 0, 0, 0),
                                      severity: DiagnosticSeverity.Warning,
                                      message: 'Error regenerating dependencies.lock (`gradle generateLock saveLock`)',
                                      detail:
                                          '```text\n' +
                                          (err.message as string).replace(/^editForCommands.*$/m, '').trim() +
                                          '\n```',
                                  })
                                  return [edit]
                              })
                          )