Line Dissolve
shapes_lines
ParameterVector|LINES|Lines|-1|False
ParameterTableField|FIELD_1|1. Attribute|LINES
ParameterTableField|FIELD_2|2. Attribute|LINES
ParameterTableField|FIELD_3|3. Attribute|LINES
ParameterSelection|ALL|Dissolve...|[0] lines with same attribute value(s);[1] all lines
OutputVector|DISSOLVED|Dissolved Lines