This interface will consist of all our functions which will be implemented in our Helper class.

IPreferenceDataStoreAPI.kt

package com.example.datastoretest.data.local

import androidx.datastore.preferences.core.Preferences
import kotlinx.coroutines.flow.Flow

interface IPreferenceDataStoreAPI {
    suspend fun <T> getPreference(key: Preferences.Key<T>,defaultValue: T):Flow<T>
    suspend fun <T> getFirstPreference(key: Preferences.Key<T>,defaultValue: T):T
    suspend fun <T> putPreference(key: Preferences.Key<T>,value:T)
    suspend fun <T> removePreference(key: Preferences.Key<T>)
    suspend fun <T> clearAllPreference()
}