SECTION 8.06  BONDS AND OTHER EVIDENCES OF INDEBTEDNESS
   The City shall have the power to borrow money on the credit of the City and to issue general obligation bonds and other evidences of indebtedness for permanent public improvements or for any other public purpose not prohibited by the Constitution and laws of the State of Texas and to issue refunding bonds to refund outstanding bonds and other evidences of indebtedness of the City previously issued. All such bonds shall be issued in conformity with the laws of the State of Texas.
   The City shall further have the power to borrow money for the purpose of constructing, acquiring, improving, extending or repairing of public utilities, recreational facilities or any other self-liquidating municipal function not prohibited by the Constitution and laws of the State of Texas, and to issue revenue bonds to evidence the obligations created thereby. Such bonds shall be a charge upon and payable from the properties, or interest therein pledged, or the income there from, or both. The holders of the revenue bonds of the City shall not have the right to demand payment thereof out of monies raised or to be raised by taxation. All such bonds shall be issued in conformity with the laws of the State of Texas. The City shall have the power to borrow money for public improvements in any other manner provided by law, including certificates of obligation as authorized by Chapter 271 of the Texas Local Government Code. All bonds and evidences of indebtedness of the City having been approved by the Attorney General and registered by the Comptroller of Public Accounts shall thereafter be incontestable in any court or other forum for any reason, and shall be valid and binding obligations of the City in accordance with their terms for all purposes.