`sig
type graph =
[ `Bgcolor of Graphviz.color
| `BgcolorWithTransparency of Graphviz.color_with_transparency
| `Center of bool
| `Comment of string
| `Concentrate of bool
| `Fontcolor of Graphviz.color
| `Fontname of string
| `Fontpath of string
| `Fontsize of int
| `Label of string
| `Layers of string list
| `Margin of float
| `Mclimit of float
| `Nodesep of float
| `Nslimit of int
| `Nslimit1 of int
| `OrderingOut
| `Orientation of [ `Landscape | `Portrait ]
| `Page of float * float
| `Pagedir of [ `LeftToRight | `TopToBottom ]
| `Quantum of float
| `Rankdir of [ `LeftToRight | `TopToBottom ]
| `Ranksep of float
| `Ratio of [ `Auto | `Compress | `Fill | `Float of float ]
| `Samplepoints of int
| `Size of float * float
| `Url of string ]
type vertex =
[ `Color of Graphviz.color
| `ColorWithTransparency of Graphviz.color_with_transparency
| `Comment of string
| `Distortion of float
| `Fillcolor of Graphviz.color
| `FillcolorWithTransparency of Graphviz.color_with_transparency
| `Fixedsize of bool
| `Fontcolor of Graphviz.color
| `Fontname of string
| `Fontsize of int
| `Height of float
| `Label of string
| `Layer of string
| `Orientation of float
| `Peripheries of int
| `Regular of bool
| `Shape of
[ `Box
| `Circle
| `Diamond
| `Doublecircle
| `Ellipse
| `Plaintext
| `Polygon of int * float
| `Record ]
| `Style of [ `Bold | `Dashed | `Dotted | `Filled | `Invis | `Solid ]
| `Url of string
| `Width of float
| `Z of float ]
type edge =
[ `Arrowhead of Graphviz.arrow_style
| `Arrowsize of float
| `Arrowtail of Graphviz.arrow_style
| `Color of Graphviz.color
| `ColorWithTransparency of Graphviz.color_with_transparency
| `Comment of string
| `Constraint of bool
| `Decorate of bool
| `Dir of [ `Back | `Both | `Forward | `None ]
| `Fontcolor of Graphviz.color
| `Fontname of string
| `Fontsize of int
| `Headlabel of string
| `Headport of [ `E | `N | `NE | `NW | `S | `SE | `SW | `W ]
| `Headurl of string
| `Label of string
| `Labelangle of float
| `Labeldistance of float
| `Labelfloat of bool
| `Labelfontcolor of Graphviz.color
| `Labelfontname of string
| `Labelfontsize of int
| `Layer of string
| `Minlen of int
| `Samehead of string
| `Sametail of string
| `Style of [ `Bold | `Dashed | `Dotted | `Invis | `Solid ]
| `Taillabel of string
| `Tailport of [ `E | `N | `NE | `NW | `S | `SE | `SW | `W ]
| `Tailurl of string
| `Weight of int ]
type subgraph = {
sg_name : string;
sg_attributes : Graphviz.DotAttributes.vertex list;
}
end`