Interface ItemCustomComponent

import {
   system,
   CustomComponentParameters,
   ItemComponentBeforeDurabilityDamageEvent,
   ItemComponentCompleteUseEvent,
   ItemComponentConsumeEvent,
   ItemComponentHitEntityEvent,
   ItemComponentMineBlockEvent,
   ItemComponentUseEvent,
   ItemComponentUseOnEvent,
} from "@minecraft/server";

system.beforeEvents.startup.subscribe((startupEvent) => {
   startupEvent.itemComponentRegistry.registerCustomComponent("custom:item", {
       onBeforeDurabilityDamage(event: ItemComponentBeforeDurabilityDamageEvent, params: CustomComponentParameters) {
           const { attackingEntity, durabilityDamage, hitEntity, itemStack } = event;
           // Your code here
       },
       onCompleteUse(event: ItemComponentCompleteUseEvent, params: CustomComponentParameters) {
           const { itemStack, source } = event;
           // Your code here
       },
       onConsume(event: ItemComponentConsumeEvent, params: CustomComponentParameters) {
           const { itemStack, source } = event;
           // Your code here
       },
       onHitEntity(event: ItemComponentHitEntityEvent, params: CustomComponentParameters) {
           const { attackingEntity, hadEffect, hitEntity, itemStack } = event;
           // Your code here
       },
       onMineBlock(event: ItemComponentMineBlockEvent, params: CustomComponentParameters) {
           const { block, itemStack, minedBlockPermutation, source } = event;
           // Your code here
       },
       onUse(event: ItemComponentUseEvent, params: CustomComponentParameters) {
           const { itemStack, source } = event;
           // Your code here
       },
       onUseOn(event: ItemComponentUseOnEvent, params: CustomComponentParameters) {
           const { source, usedOnBlockPermutation } = event;
           // Your code here
       },
   });
});
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import { system } from "@minecraft/server";

system.beforeEvents.startup.subscribe((initEvent) => {
   initEvent.itemComponentRegistry.registerCustomComponent("custom:item", {
       onBeforeDurabilityDamage(event) {
           const { attackingEntity, durabilityDamage, hitEntity, itemStack } = event;
           // Your code here
       },
       onCompleteUse(event) {
           const { itemStack, source } = event;
           // Your code here
       },
       onConsume(event) {
           const { itemStack, source } = event;
           // Your code here
       },
       onHitEntity(event) {
           const { attackingEntity, hadEffect, hitEntity, itemStack } = event;
           // Your code here
       },
       onMineBlock(event) {
           const { block, itemStack, minedBlockPermutation, source } = event;
           // Your code here
       },
       onUse(event) {
           const { itemStack, source } = event;
           // Your code here
       },
       onUseOn(event) {
           const { source, usedOnBlockPermutation } = event;
           // Your code here
       },
   });
});
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interface ItemCustomComponent {
    onBeforeDurabilityDamage?: (
        arg0: ItemComponentBeforeDurabilityDamageEvent,
        arg1: CustomComponentParameters,
    ) => void;
    onCompleteUse?: (
        arg0: ItemComponentCompleteUseEvent,
        arg1: CustomComponentParameters,
    ) => void;
    onConsume?: (
        arg0: ItemComponentConsumeEvent,
        arg1: CustomComponentParameters,
    ) => void;
    onHitEntity?: (
        arg0: ItemComponentHitEntityEvent,
        arg1: CustomComponentParameters,
    ) => void;
    onMineBlock?: (
        arg0: ItemComponentMineBlockEvent,
        arg1: CustomComponentParameters,
    ) => void;
    onUse?: (
        arg0: ItemComponentUseEvent,
        arg1: CustomComponentParameters,
    ) => void;
    onUseOn?: (
        arg0: ItemComponentUseOnEvent,
        arg1: CustomComponentParameters,
    ) => void;
}