tree 09a0f52b7b17c4897ac520ff1bc534bc0cf81133
parent 9c10613d3b659682048714bfdf5427757208199a
author Stanley Yang <yangstanley@google.com> 1621018845 +0000
committer Stanley Yang <yangstanley@google.com> 1621018845 +0000

adding persist_for and its description
Change-Id: I2fd44f69e67f921cfed77776d93ccd7a9a4a03e3