Create Feature Class—Data Management toolbox | ArcGIS Desktop
CreateFeatureclass_management (out_path, out_name,
{geometry_type},
{template}, {has_m}, {has_z},
{spatial_reference},
{config_keyword},
{spatial_grid_1}, {spatial_grid_2}, {spatial_grid_3},
{out_alias})
the [0] is a slice, meaning get the first, which in your case would be the first... first of what is sketchy.
The above is the preferred by me, approach,
out_path…. the location where the featureclass is going
out_name .. the name to give the featureclass
geometry_type… point, line, polygon stuff
template … if you have a featureclass that you want to use for emulation
has_m, has_z - well? do you want them?
spatial_reference - specify it now! or you have to use the define projection tool
the rest... might be important but not critical if saving to a gdb which would have the info anyway.
Note! there is no ….. blah = CreateFeatureclass
because everything is inside the function