class PostgresNode(BaseModel)

class ID(PostgresNode)

class Config()

class TableID(ID)

@root_validator(pre=True)
def make_full_name(cls, values)

class ColumnID(ID)

@root_validator(pre=True)
def make_full_name(cls, values)

class ColumnConstraint(Enum)

class Column(PostgresNode)

class Config()

@validator("full_name", always=True)
def make_full_name(cls, full_name, values)

class Constraint(str, Enum)

class Edge(BaseModel)

class TableType(str, Enum)

class Table(PostgresNode)

class Config()

@validator("full_name", always=True)
def make_full_name(cls, full_name, values)

def get_edges()

class EdgeQuery(BaseModel)

def to_edge() -> Optional[Edge]