def METHOD_NAME(browse_pgconf, browser, psql):
    param = 'maintenance_work_mem'
    browser.select("#inputSearchSettings").send_keys(param)
    browser.select("#buttonSearchSettings").click()
    input_ = browser.select(f"input[name={param}]")
    assert "64MB" == input_.get_attribute('value')
    out = psql("-Abt", c=f"SHOW {param};")
    assert '64MB' == out.strip()
    browser.absent(f"#buttonResetDefault_{param}")
    input_.send_keys(browser.Keys.BACKSPACE)  # 64M
    input_.send_keys(browser.Keys.BACKSPACE)  # 64
    input_.send_keys(browser.Keys.BACKSPACE)  # 6
    input_.send_keys(browser.Keys.BACKSPACE)
    input_.send_keys("128MB")
    browser.select(".main form[role=form] button[type=submit]").click()
    # Ensure Reset button appears
    browser.select(f"#buttonResetDefault_{param}")
    out = psql("-Abt", c=f"SHOW {param};")
    assert '128MB' == out.strip()