diff --git a/api/ohos.contact.d.ts b/api/ohos.contact.d.ts
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+++ b/api/ohos.contact.d.ts
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+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { AsyncCallback } from './basic';
+
+/**
+ * Contains variety of system contact, provides functions for adding, updating and deleting these system contact
+ * and provides methods for querying the information of contact.
+ *
+ * @since 7
+ * @syscap SystemCapability.Applications.ContactsData
+ */
+declare namespace contact {
+  /**
+   * Creates a contact.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param contact Indicates the contact information.
+   * @return Returns the contact ID (which can be obtained by {@link Contact#getId()}) if the creation is successful;
+   * returns {@link Contact#INVALID_CONTACT_ID} if the creation fails.
+   */
+  function addContact(contact: Contact, callback: AsyncCallback<number>): void;
+  function addContact(contact: Contact): Promise<number>;
+
+  /**
+   * Deletes a specified contact.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param key Indicates the unique query key of a contact to delete.
+   * @return Returns {@code true} if the contact is deleted; returns {@code false} otherwise.
+   */
+  function deleteContact(key: string, callback: AsyncCallback<void>): void;
+  function deleteContact(key: string): Promise<void>;
+
+  /**
+   * Queries a specified contact of specified attributes.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param key Indicates the unique query key of a contact.
+   * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
+   * @param attrs Indicates the contact attributes. If this parameter is null, all attributes are used for matching.
+   * @return Returns the specified contact.
+   */
+  function queryContact(key: string, callback: AsyncCallback<Contact>): void;
+  function queryContact(key: string, holder: Holder, callback: AsyncCallback<Contact>): void;
+  function queryContact(key: string, attrs: ContactAttributes, callback: AsyncCallback<Contact>): void;
+  function queryContact(key: string, holder: Holder, attrs: ContactAttributes, callback: AsyncCallback<Contact>): void;
+  function queryContact(key: string, holder?: Holder, attrs?: ContactAttributes): Promise<Contact>;
+
+  /**
+   * Queries contacts with query conditions.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
+   * @param attrs Indicates the contact attributes. If this parameter is null, all attributes are used for matching.
+   * @return Returns the {@code Contact} list object.
+   */
+  function queryContacts(callback: AsyncCallback<Array<Contact>>): void;
+  function queryContacts(holder: Holder, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContacts(attrs: ContactAttributes, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContacts(holder: Holder, attrs: ContactAttributes, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContacts(holder?: Holder, attrs?: ContactAttributes): Promise<Array<Contact>>;
+
+  /**
+   * Queries contacts by a specified email address, contact holder, and contact attributes.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param email Indicates the email address.
+   * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
+   * @param attrs Indicates the contact attributes. If this parameter is null, all attributes are used for matching.
+   * @return Returns a {@code Contact} list object.
+   */
+  function queryContactsByEmail(email: string, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByEmail(email: string, holder: Holder, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByEmail(email: string, attrs: ContactAttributes, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByEmail(email: string, holder: Holder, attrs: ContactAttributes, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByEmail(email: string, holder?: Holder, attrs?: ContactAttributes): Promise<Array<Contact>>;
+
+  /**
+   * Queries contacts by a phone number, holder, and contact attribute.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}.
+   *
+   * @param phoneNumber Indicates the phone number. Only full match is supported, and wildcards are not supported.
+   * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
+   * @param attrs Indicates the contact attribute. If this parameter is null,
+   * all attributes will be used for matching.
+   * @return Returns the {@code Contact} list object.
+   */
+  function queryContactsByPhoneNumber(phoneNumber: string, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByPhoneNumber(phoneNumber: string, holder: Holder, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByPhoneNumber(phoneNumber: string, attrs: ContactAttributes, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByPhoneNumber(phoneNumber: string, holder: Holder, attrs: ContactAttributes, callback: AsyncCallback<Array<Contact>>): void;
+  function queryContactsByPhoneNumber(phoneNumber: string, holder?: Holder, attrs?: ContactAttributes): Promise<Array<Contact>>;
+
+  /**
+   * Queries contact groups.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
+   * @return Returns the contact group list.
+   */
+  function queryGroups(callback: AsyncCallback<Array<Group>>): void;
+  function queryGroups(holder: Holder, callback: AsyncCallback<Array<Group>>): void;
+  function queryGroups(holder?: Holder): Promise<Array<Group>>;
+
+  /**
+   * Queries contact holders.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @return Returns the {@code Holder} list object.
+   */
+  function queryHolders(callback: AsyncCallback<Array<Holder>>): void;
+  function queryHolders(): Promise<Array<Holder>>;
+
+  /**
+   * Obtains the query key of a contact based on a specified ID and holder.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param id Indicates the contact ID.
+   * @param holder Indicates the contact holder. If this parameter is null, the default holder is used for matching.
+   * @return Returns the query key of the contact.
+   */
+  function queryKey(id: number, callback: AsyncCallback<string>): void;
+  function queryKey(id: number, holder: Holder, callback: AsyncCallback<string>): void;
+  function queryKey(id: number, holder?: Holder): Promise<string>;
+
+  /**
+   * Queries information about "my card".
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param attrs Indicates the contact attributes. If this parameter is null, all attributes are used for matching.
+   * @return Returns information about "my card".
+   */
+  function queryMyCard(callback: AsyncCallback<Contact>): void;
+  function queryMyCard(attrs: ContactAttributes, callback: AsyncCallback<Contact>): void;
+  function queryMyCard(attrs?: ContactAttributes): Promise<Contact>;
+
+  /**
+   * Updates specified attributes of a contact.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param contact Indicates the contact whose information is to update.
+   * @param attrs Indicates the contact attributes to update. If this parameter is null,
+   * all available attributes will be updated.
+   * @return Returns {@code true} if the update is successful; returns {@code false} otherwise.
+   */
+  function updateContact(contact: Contact, callback: AsyncCallback<void>): void;
+  function updateContact(contact: Contact, attrs: ContactAttributes, callback: AsyncCallback<void>): void;
+  function updateContact(contact: Contact, attrs?: ContactAttributes): Promise<void>;
+
+  /**
+   * Checks whether the contact ID is in the local phone book.
+   *
+   * <p>Permissions required: {@code ohos.permission.READ_CONTACTS} and {@code ohos.permission.WRITE_CONTACTS}
+   *
+   * @param id Indicates the contact ID.
+   * @return Returns {@code true} if the contact ID is in the local phone book; returns {@code false} otherwise.
+   */
+  function isLocalContact(id: number, callback: AsyncCallback<boolean>): void;
+  function isLocalContact(id: number): Promise<boolean>;
+
+  /**
+   * Checks whether the contact ID is of "my card".
+   *
+   * @param id Indicates the contact ID.
+   * @return Returns {@code true} if the contact ID is of "my card"; returns {@code false} otherwise.
+   */
+  function isMyCard(id: number, callback: AsyncCallback<boolean>): void;
+  function isMyCard(id: number): Promise<boolean>;
+
+  /**
+   * Provides methods for contact information
+   */
+  class Contact {
+    /**
+     * Indicates the contact ID.
+     */
+    static readonly INVALID_CONTACT_ID: -1
+
+    /**
+     * Indicates the contact ID.
+     */
+    readonly id: number
+
+    /**
+     * Indicates the query key that identifies the contact.
+     */
+    readonly key: string
+
+    /**
+     * Indicates the contact attributes.
+     */
+    contactAttributes: ContactAttributes
+
+    /**
+     * Indicates an email address of the contact.
+     */
+    emails: Email[]
+
+    /**
+     * Indicates an event (special date) of the contact.
+     */
+    events: Event[]
+
+    /**
+     * Indicates a group of the contact.
+     */
+    groups: Group[]
+
+    /**
+     * Indicates an IM address of the contact.
+     */
+    imAddresses: ImAddress[]
+
+    /**
+     * Indicates a phone number of the contact.
+     */
+    phoneNumbers: PhoneNumber[]
+
+    /**
+     * Indicates the contact portrait.
+     */
+    portrait: Portrait
+
+    /**
+     * Indicates a postal address of the contact.
+     */
+    postalAddresses: PostalAddress[]
+
+    /**
+     * Indicates a relation of the contact.
+     */
+    relations: Relation[]
+
+    /**
+     * Indicates a Session Initiation Protocol (SIP) address of the contact.
+     */
+    sipAddresses: SipAddress[]
+
+    /**
+     * Indicates a website of the contact.
+     */
+    websites: Website[]
+
+    /**
+     * Indicates the contact name.
+     */
+    name: Name
+
+    /**
+     * Indicates the contact nickname.
+     */
+    nickName: NickName
+
+    /**
+     * Indicates the contact note.
+     */
+    note: Note
+
+    /**
+     * Indicates organization information about the contact.
+     */
+    organization: Organization
+  }
+
+  /**
+   * Provides methods for contact attributes information
+   */
+  class ContactAttributes {
+    /**
+     * Indicates the contact attributes.
+     */
+    attributes: Attribute[]
+  }
+
+  /**
+   * Provides methods for attribute information
+   */
+  enum Attribute {
+    /**
+     * Indicates the contact event.
+     */
+    ATTR_CONTACT_EVENT,
+
+    /**
+     * Indicates the email address.
+     */
+    ATTR_EMAIL,
+
+    /**
+     * Indicates the contact group.
+     */
+    ATTR_GROUP_MEMBERSHIP,
+
+    /**
+     * Indicates the instant messaging (IM) address.
+     */
+    ATTR_IM,
+
+    /**
+     * Indicates the name.
+     */
+    ATTR_NAME,
+
+    /**
+     * Indicates the nickname.
+     */
+    ATTR_NICKNAME,
+
+    /**
+     * Indicates the note.
+     */
+    ATTR_NOTE,
+
+    /**
+     * Indicates the organization.
+     */
+    ATTR_ORGANIZATION,
+
+    /**
+     * Indicates the phone number.
+     */
+    ATTR_PHONE,
+
+    /**
+     * Indicates the portrait.
+     */
+    ATTR_PORTRAIT,
+
+    /**
+     * Indicates the postal address.
+     */
+    ATTR_POSTAL_ADDRESS,
+
+    /**
+     * Indicates the relation.
+     */
+    ATTR_RELATION,
+
+    /**
+     * Indicates the Session Initiation Protocol (SIP) address.
+     */
+    ATTR_SIP_ADDRESS,
+
+    /**
+     * Indicates the website.
+     */
+    ATTR_WEBSITE
+  }
+
+  /**
+   * Provides methods for email information
+   */
+  class Email {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: 0
+
+    /**
+     * Indicates a home email.
+     */
+    static readonly EMAIL_HOME: 1
+
+    /**
+     * Indicates a work email.
+     */
+    static readonly EMAIL_WORK: 2
+
+    /**
+     * Indicates an email of the OTHER type.
+     */
+    static readonly EMAIL_OTHER: 3
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -1
+
+    /**
+     * Indicates the email address.
+     */
+    email: string
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the displayed email name.
+     */
+    displayName: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for event information
+   */
+  class Event {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: 0
+
+    /**
+     * Indicates an anniversary event.
+     */
+    static readonly EVENT_ANNIVERSARY: 1
+
+    /**
+     * Indicates an event of the OTHER type.
+     */
+    static readonly EVENT_OTHER: 2
+
+    /**
+     * Indicates an birthday event.
+     */
+    static readonly EVENT_BIRTHDAY: 3
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -1
+
+    /**
+     * Indicates the event date.
+     */
+    eventDate: string
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for group information
+   */
+  class Group {
+    /**
+     * Indicates the contact group ID.
+     */
+    groupId: number
+
+    /**
+     * Indicates the contact group title.
+     */
+    title: string
+  }
+
+  /**
+   * Provides methods for holder information
+   */
+  class Holder {
+    /**
+     * Indicates the bundle name of a contact holder.
+     */
+    readonly bundleName: string
+
+    /**
+     * Indicates the displayed name of a contact holder.
+     */
+    readonly displayName: string
+
+    /**
+     * Indicates the holder ID.
+     */
+    holderId: number
+  }
+
+  /**
+   * Provides methods for ImAddress information
+   */
+  class ImAddress {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: -1
+
+    /**
+     * Indicates an AIM instant message.
+     */
+    static readonly IM_AIM: 0
+
+    /**
+     * Indicates a Windows Live instant message.
+     */
+    static readonly IM_MSN: 1
+
+    /**
+     * Indicates a Yahoo instant message.
+     */
+    static readonly IM_YAHOO: 2
+
+    /**
+     * Indicates a Skype instant message.
+     */
+    static readonly IM_SKYPE: 3
+
+    /**
+     * Indicates a QQ instant message.
+     */
+    static readonly IM_QQ: 4
+
+    /**
+     * Indicates an ICQ instant message.
+     */
+    static readonly IM_ICQ: 6
+
+    /**
+     * Indicates a Jabber instant message.
+     */
+    static readonly IM_JABBER: 7
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -2
+
+    /**
+     * Indicates the IM address.
+     */
+    imAddress: string
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for name information
+   */
+  class Name {
+    /**
+     * Indicates the family name of the contact.
+     */
+    familyName: string
+
+    /**
+     * Indicates the phonetic family name of the contact.
+     */
+    familyNamePhonetic: string
+
+    /**
+     * Indicates the full name of the contact.
+     */
+    fullName: string
+
+    /**
+     * Indicates the given name of the contact.
+     */
+    givenName: string
+
+    /**
+     * Indicates the phonetic given name of the contact.
+     */
+    givenNamePhonetic: string
+
+    /**
+     * Indicates the middle name of the contact.
+     */
+    middleName: string
+
+    /**
+     * Indicates the phonetic middle name of the contact.
+     */
+    middleNamePhonetic: string
+
+    /**
+     * Indicates the prefix of the contact name.
+     */
+    namePrefix: string
+
+    /**
+     * Indicates the suffix of this contact name.
+     */
+    nameSuffix: string
+  }
+
+  /**
+   * Provides methods for nick name information
+   */
+  class NickName {
+    /**
+     * Indicates the nickname of the contact.
+     */
+    nickName: string
+  }
+
+  /**
+   * Provides methods for note information
+   */
+  class Note {
+    /**
+     * Indicates the note content.
+     */
+    noteContent: string
+  }
+
+  /**
+   * Provides methods for organization information
+   */
+  class Organization {
+    /**
+     * Indicates the name of the organization to which the contact belongs.
+     */
+    name: string
+
+    /**
+     * Indicates the title of the contact.
+     */
+    title: string
+  }
+
+  /**
+   * Provides methods for phone number information
+   */
+  class PhoneNumber {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: 0
+
+    /**
+     * Indicates a home number.
+     */
+    static readonly NUM_HOME: 1
+
+    /**
+     * Indicates a mobile phone number.
+     */
+    static readonly NUM_MOBILE: 2
+
+    /**
+     * Indicates a work number.
+     */
+    static readonly NUM_WORK: 3
+
+    /**
+     * Indicates a work fax number.
+     */
+    static readonly NUM_FAX_WORK: 4
+
+    /**
+     * Indicates a home fax number.
+     */
+    static readonly NUM_FAX_HOME: 5
+
+    /**
+     * Indicates a pager number.
+     */
+    static readonly NUM_PAGER: 6
+
+    /**
+     * Indicates a number of the OTHER type.
+     */
+    static readonly NUM_OTHER: 7
+
+    /**
+     * Indicates a callback number.
+     */
+    static readonly NUM_CALLBACK: 8
+
+    /**
+     * Indicates a car number.
+     */
+    static readonly NUM_CAR: 9
+
+    /**
+     * Indicates a company director number.
+     */
+    static readonly NUM_COMPANY_MAIN: 10
+
+    /**
+     * Indicates an Integrated Services Digital Network (ISDN) number.
+     */
+    static readonly NUM_ISDN: 11
+
+    /**
+     * Indicates a main number.
+     */
+    static readonly NUM_MAIN: 12
+
+    /**
+     * Indicates a number of the OTHER_FAX type.
+     */
+    static readonly NUM_OTHER_FAX: 13
+
+    /**
+     * Indicates a radio number.
+     */
+    static readonly NUM_RADIO: 14
+
+    /**
+     * Indicates a telex number.
+     */
+    static readonly NUM_TELEX: 15
+
+    /**
+     * Indicates a teletypewriter (TTY) or test-driven development (TDD) number.
+     */
+    static readonly NUM_TTY_TDD: 16
+
+    /**
+     * Indicates a work mobile phone number.
+     */
+    static readonly NUM_WORK_MOBILE: 17
+
+    /**
+     * Indicates a work pager number.
+     */
+    static readonly NUM_WORK_PAGER: 18
+
+    /**
+     * Indicates an assistant number.
+     */
+    static readonly NUM_ASSISTANT: 19
+
+    /**
+     * Indicates an MMS number.
+     */
+    static readonly NUM_MMS: 20
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -1
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the phone number of the contact.
+     */
+    phoneNumber: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for portrait information
+   */
+  class Portrait {
+    /**
+     * Indicates the uri of the contact portrait.
+     */
+    uri: string
+  }
+
+  /**
+   * Provides methods for postal address information
+   */
+  class PostalAddress {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: 0
+
+    /**
+     * Indicates a home address.
+     */
+    static readonly ADDR_HOME: 1
+
+    /**
+     * Indicates a work address.
+     */
+    static readonly ADDR_WORK: 2
+
+    /**
+     * Indicates an address of the OTHER type.
+     */
+    static readonly ADDR_OTHER: 3
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -1
+
+    /**
+     * Indicates the city where this contact is located.
+     */
+    city: string
+
+    /**
+     * Indicates the country/region where this contact is located.
+     */
+    country: string
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the neighborhood where this contact is located.
+     */
+    neighborhood: string
+
+    /**
+     * Indicates the post box of this contact.
+     */
+    pobox: string
+
+    /**
+     * Indicates the postal address of this contact.
+     */
+    postalAddress: string
+
+    /**
+     * Indicates the postal code of this contact.
+     */
+    postcode: string
+
+    /**
+     * Indicates the area where this contact is located.
+     */
+    region: string
+
+    /**
+     * Indicates the street where this contact is located.
+     */
+    street: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for relation information
+   */
+  class Relation {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: 0
+
+    /**
+     * Indicates an assistant.
+     */
+    static readonly RELATION_ASSISTANT: 1
+
+    /**
+     * Indicates a brother.
+     */
+    static readonly RELATION_BROTHER: 2
+
+    /**
+     * Indicates a child.
+     */
+    static readonly RELATION_CHILD: 3
+
+    /**
+     * Indicates a domestic partner.
+     */
+    static readonly RELATION_DOMESTIC_PARTNER: 4
+
+    /**
+     * Indicates a father.
+     */
+    static readonly RELATION_FATHER: 5
+
+    /**
+     * Indicates a friend.
+     */
+    static readonly RELATION_FRIEND: 6
+
+    /**
+     * Indicates a manager.
+     */
+    static readonly RELATION_MANAGER: 7
+
+    /**
+     * Indicates a mother.
+     */
+    static readonly RELATION_MOTHER: 8
+
+    /**
+     * Indicates a parent.
+     */
+    static readonly RELATION_PARENT: 9
+
+    /**
+     * Indicates a partner.
+     */
+    static readonly RELATION_PARTNER: 10
+
+    /**
+     * Indicates a referrer.
+     */
+    static readonly RELATION_REFERRED_BY: 11
+
+    /**
+     * Indicates a relative.
+     */
+    static readonly RELATION_RELATIVE: 12
+
+    /**
+     * Indicates a sister.
+     */
+    static readonly RELATION_SISTER: 13
+
+    /**
+     * Indicates a spouse.
+     */
+    static readonly RELATION_SPOUSE: 14
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -1
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the relation name.
+     */
+    relationName: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for sip address information
+   */
+  class SipAddress {
+    /**
+     * Indicates a custom label.
+     */
+    static readonly CUSTOM_LABEL: 0
+
+    /**
+     * Indicates a home SIP address.
+     */
+    static readonly SIP_HOME: 1
+
+    /**
+     * Indicates a work SIP address.
+     */
+    static readonly SIP_WORK: 2
+
+    /**
+     * Indicates an SIP address of the OTHER type.
+     */
+    static readonly SIP_OTHER: 3
+
+    /**
+     * Indicates an invalid label ID.
+     */
+    static readonly INVALID_LABEL_ID: -1
+
+    /**
+     * Indicates the label name of an attribute.
+     */
+    labelName: string
+
+    /**
+     * Indicates the SIP address.
+     */
+    sipAddress: string
+
+    /**
+     * Indicates the label id.
+     */
+    labelId: number
+  }
+
+  /**
+   * Provides methods for website information
+   */
+  class Website {
+    /**
+     * Indicates the website.
+     */
+    website: string
+  }
+}
+
+export default contact;
\ No newline at end of file