ExplainQueryStep.fromJson constructor
      
      ExplainQueryStep.fromJson(
    
    
- Map json_
Implementation
ExplainQueryStep.fromJson(core.Map json_)
  : this(
      kind: json_['kind'] as core.String?,
      substeps:
          (json_['substeps'] as core.List?)
              ?.map((value) => value as core.String)
              .toList(),
    );