public DescribeAgreementResult withProposer(Proposer proposer) {
        setProposer(proposer);
        return this;
    }
<p>
The details of the party proposing the agreement terms. This is commonly the seller for
<code>PurchaseAgreement</code>.
</p>

@param proposer
       The details of the party proposing the agreement terms. This is commonly the seller for
       <code>PurchaseAgreement</code>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-marketplaceagreement/src/main/java/com/amazonaws/services/marketplaceagreement/model/DescribeAgreementResult.java