Step 1: Understand the term.
A one-sided agreement is a contract whose terms heavily favour the seller or service provider and are unfair to the consumer. The question asks how the Consumer Protection Act, 2019 classifies such agreements.
Step 2: Find the relevant idea.
The 2019 Act widened the meaning of unfair trade practice. Under Section 2(47), unfair trade practice now covers contract terms that are one-sided and cause big harm to the consumer.
Step 3: What such terms look like.
One-sided terms may let the company cancel unfairly, place all the liability on the consumer, or impose unreasonable conditions. The Act treats these as a form of unfair trade practice.
Step 4: Why not unilateral contract.
A unilateral contract is a technical contract idea where one side promises in return for an act. That is a different concept and not what one-sided unfair terms mean here.
Step 5: Why not unconscionable or quasi contract.
Unconscionable describes a harsh bargain in general contract law, and a quasi contract is an obligation imposed by law where there is no real agreement. Neither is the specific label the 2019 Act uses.
Step 6: Conclude.
Under the Consumer Protection Act, 2019, one-sided agreements fall under unfair trade practices.
\[ \boxed{\text{Unfair trade practices}} \]