UserMappingAttribute
A given method is marked as user implemented mapping with this attribute.
If AutoUserMappings is true,
this attribute allows to ignore a user implemented mapping method.
If set to true, this user mapping acts as the default mapping for the given type pair.
Only one mapping per type-pair in a mapper can be set to true.
If no mapping for a given type-pair has a value of true for Default
the first mapping encountered without an explicit value of false is considered the default mapping.
Whether this user mapping should be ignored.
public UserMappingAttribute()