Imported sunpy.sun.sun and corrected syntax of obstime input and checking output in example in docstring of goes_lx().
Imported sunpy.sun.sun and corrected syntax of obstime input and checking
output in example in docstring of goes_lx().

dpshelio/sunpy,Alex-Ian-Hamilton/sunpy,Alex-Ian-Hamilton/sunpy,dpshelio/sunpy,dpshelio/sunpy,Alex-Ian-Hamilton/sunpy