Inserting multiple records with pg-promise

I have a scenario in which I need to insert multiple records. I have a table structure like id (it's fk from other table), key(char), value(char). The input which needs to be saved would be array of above data. example: I have some array objects like:

lst = [];

obj = {};
obj.id= 123;
obj.key = 'somekey';
obj.value = '1234';
lst.push(obj);

obj = {};
obj.id= 123;
obj.key = 'somekey1';
obj.value = '12345';
lst.push(obj);

In MS SQL, I would have created TVP and passed it. I don't know how to achieve in postgres. So now what I want to do is save all the items from the list in single query in postgres sql, using pg-promise library. I'm not able to find any documentation / understand from documentation. Any help appreciated. Thanks.