[From string (line 10) ]                    
                                            
@startuml                                   
map " " as mapper {                         
attribute => {{json                         
{                                           
    "this":"that",                          
    "fgd":"sdf"                             
                                            
}}                                          
name => value                               
}                                           
^^^^^                                       
 Map definition should contains key => value