isMat - multiple declarations
Enum member isMat
Check whether MatT is a Mat
enum isMat(MatT)
= __traits(isSame, TemplateOf!MatT, Mat);
Enum member isMat
Check whether MatT is a Mat with R rows and C columns
enum isMat(ulong R, ulong C, MatT)
= MatT .rowLength == R && (MatT .columnLength == C);